394807924 has 24 divisors (see below), whose sum is σ = 792933120. Its totient is φ = 168492576.

The previous prime is 394807891. The next prime is 394807979. The reversal of 394807924 is 429708493.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22807 + ... + 36190.

It is an arithmetic number, because the mean of its divisors is an integer number (33038880).

Almost surely, 2^394807924 is an apocalyptic number.

It is an amenable number.

394807924 is an abundant number, since it is smaller than the sum of its proper divisors (398125196).

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

394807924 is a wasteful number, since it uses less digits than its factorization.

394807924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59247 (or 59245 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 394807924 is about 19869.7741305733. The cubic root of 394807924 is about 733.6044440198.

The spelling of 394807924 in words is "three hundred ninety-four million, eight hundred seven thousand, nine hundred twenty-four".