394625994 has 32 divisors (see below), whose sum is σ = 902952960. Its totient is φ = 112631472.

The previous prime is 394625971. The next prime is 394626013. The reversal of 394625994 is 499526493.

It is a Curzon 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, 40227 + ... + 49065.

It is an arithmetic number, because the mean of its divisors is an integer number (28217280).

Almost surely, 2^394625994 is an apocalyptic number.

394625994 is an abundant number, since it is smaller than the sum of its proper divisors (508326966).

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

394625994 is a wasteful number, since it uses less digits than its factorization.

394625994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9914.

The product of its digits is 2099520, while the sum is 51.

The square root of 394625994 is about 19865.1955439658. The cubic root of 394625994 is about 733.4917435106.

The spelling of 394625994 in words is "three hundred ninety-four million, six hundred twenty-five thousand, nine hundred ninety-four".