320865712 has 20 divisors (see below), whose sum is σ = 622928880. Its totient is φ = 160109888.

The previous prime is 320865707. The next prime is 320865719. The reversal of 320865712 is 217568023.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (320865719) 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, 11887 + ... + 27982.

It is an arithmetic number, because the mean of its divisors is an integer number (31146444).

Almost surely, 2^320865712 is an apocalyptic number.

It is an amenable number.

320865712 is a deficient number, since it is larger than the sum of its proper divisors (302063168).

320865712 is a wasteful number, since it uses less digits than its factorization.

320865712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40380 (or 40374 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 320865712 is about 17912.7248625104. The cubic root of 320865712 is about 684.6066343988.

The spelling of 320865712 in words is "three hundred twenty million, eight hundred sixty-five thousand, seven hundred twelve".