320468772 has 48 divisors (see below), whose sum is σ = 817326272. Its totient is φ = 97130880.

The previous prime is 320468749. The next prime is 320468843. The reversal of 320468772 is 277864023.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 320468772.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4879 + ... + 25782.

Almost surely, 2^320468772 is an apocalyptic number.

It is an amenable number.

320468772 is an abundant number, since it is smaller than the sum of its proper divisors (496857500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320468772 is a wasteful number, since it uses less digits than its factorization.

320468772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30748 (or 30746 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 320468772 is about 17901.6416007024. The cubic root of 320468772 is about 684.3242110638.

The spelling of 320468772 in words is "three hundred twenty million, four hundred sixty-eight thousand, seven hundred seventy-two".