320312984 has 16 divisors (see below), whose sum is σ = 602713320. Its totient is φ = 159589440.

The previous prime is 320312983. The next prime is 320312989. The reversal of 320312984 is 489213023.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 320312984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320312983) 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, 68477 + ... + 73004.

Almost surely, 2^320312984 is an apocalyptic number.

It is an amenable number.

320312984 is a deficient number, since it is larger than the sum of its proper divisors (282400336).

320312984 is a wasteful number, since it uses less digits than its factorization.

320312984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141770 (or 141766 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 320312984 is about 17897.2898507009. The cubic root of 320312984 is about 684.2133039705.

The spelling of 320312984 in words is "three hundred twenty million, three hundred twelve thousand, nine hundred eighty-four".