722492 has 6 divisors (see below), whose sum is σ = 1264368. Its totient is φ = 361244.

The previous prime is 722489. The next prime is 722509. The reversal of 722492 is 294227.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722492.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90308 + ... + 90315.

It is an arithmetic number, because the mean of its divisors is an integer number (210728).

2⁷²²⁴⁹² is an apocalyptic number.

It is an amenable number.

722492 is a deficient number, since it is larger than the sum of its proper divisors (541876).

722492 is a wasteful number, since it uses less digits than its factorization.

722492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180627 (or 180625 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 722492 is about 849.9952941046. The cubic root of 722492 is about 89.7313801272.

The spelling of 722492 in words is "seven hundred twenty-two thousand, four hundred ninety-two".