Write a C program to calculate sum of digits of a number

Calculate sum of digits of a number

Sample Output

Calculate sum of digits of a number.

Number: 1345

Sum: 13

Source Code

#include<stdio.h>
 
int main()
{
    int number, digit, sum = 0;
 
    printf("Calculate sum of digits of a number.\n\nNumber: ");
    scanf("%d", &number);
 
    while(number != 0)
    {
        digit = (number % 10);
        sum = sum + digit;
        number = (number / 10);
    }
    printf("\nSum: %d\n\n", sum);
}

Sample Output

Calculate sum of digits of a number.

Number: 897

Sum: 24