389934508 has 24 divisors (see below), whose sum is σ = 723138192. Its totient is φ = 183343104.

The previous prime is 389934487. The next prime is 389934521. The reversal of 389934508 is 805439983.

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 in 7 ways as a sum of consecutive naturals, for example, 135735 + ... + 138577.

It is an arithmetic number, because the mean of its divisors is an integer number (30130758).

Almost surely, 2^389934508 is an apocalyptic number.

It is an amenable number.

389934508 is a deficient number, since it is larger than the sum of its proper divisors (333203684).

389934508 is a wasteful number, since it uses less digits than its factorization.

389934508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881 (or 4879 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 389934508 is about 19746.7594303470. The cubic root of 389934508 is about 730.5734581976.

The spelling of 389934508 in words is "three hundred eighty-nine million, nine hundred thirty-four thousand, five hundred eight".