394556364 has 54 divisors (see below), whose sum is σ = 1016613780. Its totient is φ = 128989680.

The previous prime is 394556363. The next prime is 394556369. The reversal of 394556364 is 463655493.

394556364 is a `hidden beast` number, since 3 + 9 + 4 + 5 + 5 + 636 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (394556363) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 915229 + ... + 915659.

Almost surely, 2^394556364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394556364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508306890).

394556364 is an abundant number, since it is smaller than the sum of its proper divisors (622057416).

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

394556364 is a wasteful number, since it uses less digits than its factorization.

394556364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931 (or 495 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The square root of 394556364 is about 19863.4429039882. The cubic root of 394556364 is about 733.4486005220.

The spelling of 394556364 in words is "three hundred ninety-four million, five hundred fifty-six thousand, three hundred sixty-four".