393933304 has 8 divisors (see below), whose sum is σ = 738624960. Its totient is φ = 196966648.

The previous prime is 393933271. The next prime is 393933311. The reversal of 393933304 is 403339393.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24620824 + ... + 24620839.

It is an arithmetic number, because the mean of its divisors is an integer number (92328120).

Almost surely, 2^393933304 is an apocalyptic number.

It is an amenable number.

393933304 is a deficient number, since it is larger than the sum of its proper divisors (344691656).

393933304 is a wasteful number, since it uses less digits than its factorization.

393933304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49241669 (or 49241665 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 37.

The square root of 393933304 is about 19847.7531222050. The cubic root of 393933304 is about 733.0623242849.

The spelling of 393933304 in words is "three hundred ninety-three million, nine hundred thirty-three thousand, three hundred four".