393804004 has 12 divisors (see below), whose sum is σ = 751807728. Its totient is φ = 179001800.

The previous prime is 393804001. The next prime is 393804017. The reversal of 393804004 is 400408393.

It is not an unprimeable number, because it can be changed into a prime (393804001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4475002 + ... + 4475089.

It is an arithmetic number, because the mean of its divisors is an integer number (62650644).

Almost surely, 2^393804004 is an apocalyptic number.

It is an amenable number.

393804004 is a deficient number, since it is larger than the sum of its proper divisors (358003724).

393804004 is a wasteful number, since it uses less digits than its factorization.

393804004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8950106 (or 8950104 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 393804004 is about 19844.4955592225. The cubic root of 393804004 is about 732.9821116112.

The spelling of 393804004 in words is "three hundred ninety-three million, eight hundred four thousand, four".