398831313272 has 32 divisors (see below), whose sum is σ = 854678949600. Its totient is φ = 170919621504.

The previous prime is 398831313241. The next prime is 398831313289. The reversal of 398831313272 is 272313138893.

It is a self number, because there is not a number n which added to its sum of digits gives 398831313272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112378 + ... + 1426550.

It is an arithmetic number, because the mean of its divisors is an integer number (26708717175).

Almost surely, 2^398831313272 is an apocalyptic number.

It is an amenable number.

398831313272 is an abundant number, since it is smaller than the sum of its proper divisors (455847636328).

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

398831313272 is a wasteful number, since it uses less digits than its factorization.

398831313272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336855 (or 336851 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The spelling of 398831313272 in words is "three hundred ninety-eight billion, eight hundred thirty-one million, three hundred thirteen thousand, two hundred seventy-two".