398372604 has 48 divisors (see below), whose sum is σ = 1108520448. Its totient is φ = 108871488.

The previous prime is 398372593. The next prime is 398372621. The reversal of 398372604 is 406273893.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 101167 + ... + 105030.

It is an arithmetic number, because the mean of its divisors is an integer number (23094176).

Almost surely, 2^398372604 is an apocalyptic number.

It is an amenable number.

398372604 is an abundant number, since it is smaller than the sum of its proper divisors (710147844).

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

398372604 is a wasteful number, since it uses less digits than its factorization.

398372604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206234 (or 206232 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 398372604 is about 19959.2736340780. The cubic root of 398372604 is about 735.8057118507.

The spelling of 398372604 in words is "three hundred ninety-eight million, three hundred seventy-two thousand, six hundred four".