398544580 has 48 divisors (see below), whose sum is σ = 957761280. Its totient is φ = 136464768.

The previous prime is 398544569. The next prime is 398544599. The reversal of 398544580 is 85445893.

It is a self number, because there is not a number n which added to its sum of digits gives 398544580.

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, 148329 + ... + 150991.

It is an arithmetic number, because the mean of its divisors is an integer number (19953360).

Almost surely, 2^398544580 is an apocalyptic number.

It is an amenable number.

398544580 is an abundant number, since it is smaller than the sum of its proper divisors (559216700).

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

398544580 is a wasteful number, since it uses less digits than its factorization.

398544580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748 (or 3746 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 398544580 is about 19963.5813420338. The cubic root of 398544580 is about 735.9115781654.

The spelling of 398544580 in words is "three hundred ninety-eight million, five hundred forty-four thousand, five hundred eighty".