Operand type clash: int is incompatible with date error

Question

I'm getting this error adding data to tables and I couldn't find the exact reason. Can you help me? In below you can see the script of my table and the data I am trying to add.(In SSMS 18)

TABLE

CREATE TABLE USERS
(
    ID INT PRIMARY KEY,
    FIRST_NAME VARCHAR(200),
    LAST_NAME VARCHAR(200),
    EMAIL VARCHAR(200),
    PASSWORD VARCHAR(10),
    USER_TYPE_ID TINYINT,
    BIRTHDAY DATE,
    GENDER CHAR(5),
    LOGIN_WITH_ID TINYINT,
    PHONE CHAR(12),
    RECEIVE_COUPON INT,
    COUNTRY_ID INT,
    CREATED DATETIME,
    MODIFIED DATETIME,
    STATUS TINYINT,
    LANGUAGE_ID INT

    CONSTRAINT FK_USER_TYPE 
        FOREIGN KEY(USER_TYPE_ID) REFERENCES USER_TYPE(ID),
    CONSTRAINT FK_LOGIN_WITH 
        FOREIGN KEY(LOGIN_WITH_ID) REFERENCES LOGIN_WITH(ID),
    CONSTRAINT FK_COUNTRY_2 
        FOREIGN KEY(COUNTRY_ID) REFERENCES COUNTRIES(ID),
    CONSTRAINT FK_LANGUAGE_2 
        FOREIGN KEY(LANGUAGE_ID) REFERENCES LANGUAGE(ID)
)

Inserting data:

INSERT INTO USERS (ID, FIRST_NAME, LAST_NAME, EMAIL, PASSWORD, USER_TYPE_ID, BIRTHDAY, GENDER, LOGIN_WITH_ID, PHONE, RECEIVE_COUPON, COUNTRY_ID, CREATED, MODIFIED, STATUS, LANGUAGE_ID) 
VALUES (123451, 'Simon', 'Walsh', 'brimmere@state.gov', 'kzde5577', 1, 21642, 'Male', 1, 17688652138, 1, 383, 37748, 42009, 0, 15)

Answer 1

In your table " USERS " the Columns ( BIRTHDAY -> DATE, CREATED & MODIFIED -> DATETIME) data types are mismatched with your table Insertion Statement.

So, this is the reason for this "Operand type Clash Error".