722732 has 12 divisors (see below), whose sum is σ = 1271256. Its totient is φ = 359520.

The previous prime is 722723. The next prime is 722737. The reversal of 722732 is 237227.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 722698 and 722707.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722732.

It is not an unprimeable number, because it can be changed into a prime (722737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (105938).

2⁷²²⁷³² is an apocalyptic number.

It is an amenable number.

722732 is a deficient number, since it is larger than the sum of its proper divisors (548524).

722732 is a wasteful number, since it uses less digits than its factorization.

722732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 926 counting only the distinct ones).

The product of its digits is 1176, while the sum is 23.

The square root of 722732 is about 850.1364596346. The cubic root of 722732 is about 89.7413147918.

Adding to 722732 its reverse (237227), we get a palindrome (959959).

The spelling of 722732 in words is "seven hundred twenty-two thousand, seven hundred thirty-two".