sum of all digits from an integer number using c++

/* A Program that reads a six digit integer and prints the sum of its six digit using Arithmatic operators. */

#include<iostream>

using namespace std;

int print_sum_of_digit(int number)

{

    int a,i,sum=0,count=0;

    if(number!=0)

    {

        while(number>0)

        {

            i=number%10;

            number=number/10;

            sum+=i;

            count++;

        }

         cout<<"Number of Digit:"<<count<<endl;

         return sum;

    }

}

int main()

{

    int number,i;

    cout<<"Enter the digit of six integer:"<<endl;

    cin>>number;

    cout<<"The sum of the digit is:"<<print_sum_of_digit(number)<<endl;

    return 0;

}