398564313320 has 64 divisors (see below), whose sum is σ = 914442272640. Its totient is φ = 156314592000.

The previous prime is 398564313313. The next prime is 398564313401. The reversal of 398564313320 is 23313465893.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62786 + ... + 895025.

It is an arithmetic number, because the mean of its divisors is an integer number (14288160510).

Almost surely, 2^398564313320 is an apocalyptic number.

It is an amenable number.

398564313320 is an abundant number, since it is smaller than the sum of its proper divisors (515877959320).

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

398564313320 is a wasteful number, since it uses less digits than its factorization.

398564313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958026 (or 958022 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 47.

The spelling of 398564313320 in words is "three hundred ninety-eight billion, five hundred sixty-four million, three hundred thirteen thousand, three hundred twenty".