394388804 has 12 divisors (see below), whose sum is σ = 701878800. Its totient is φ = 193852008.

The previous prime is 394388803. The next prime is 394388807. The reversal of 394388804 is 408883493.

It is not an unprimeable number, because it can be changed into a prime (394388803) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 835334 + ... + 835805.

It is an arithmetic number, because the mean of its divisors is an integer number (58489900).

Almost surely, 2^394388804 is an apocalyptic number.

It is an amenable number.

394388804 is a deficient number, since it is larger than the sum of its proper divisors (307489996).

394388804 is a wasteful number, since it uses less digits than its factorization.

394388804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671202 (or 1671200 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 394388804 is about 19859.2246575741. The cubic root of 394388804 is about 733.3447589588.

The spelling of 394388804 in words is "three hundred ninety-four million, three hundred eighty-eight thousand, eight hundred four".