475239894 has 24 divisors (see below), whose sum is σ = 1003142520. Its totient is φ = 150075072.

The previous prime is 475239887. The next prime is 475239929. The reversal of 475239894 is 498932574.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107539 + ... + 111870.

It is an arithmetic number, because the mean of its divisors is an integer number (41797605).

Almost surely, 2^475239894 is an apocalyptic number.

475239894 is an abundant number, since it is smaller than the sum of its proper divisors (527902626).

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

475239894 is a wasteful number, since it uses less digits than its factorization.

475239894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219452 (or 219433 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 475239894 is about 21799.9975688072. The cubic root of 475239894 is about 780.3767049556.

The spelling of 475239894 in words is "four hundred seventy-five million, two hundred thirty-nine thousand, eight hundred ninety-four".