Reverse of a number

source code:

#include<stdio.h>

int main()

{

    int num,r,reverse=0;

    printf("Enter any number: ");

    scanf("%d",&num);

    while(num)

{

         r=num%10;

         reverse=reverse*10+r;

         num=num/10;

    }

    printf("Reversed of number: %d",reverse);

    getch();

    return 0;

}