389376388 has 24 divisors (see below), whose sum is σ = 719913600. Its totient is φ = 183972768.

The previous prime is 389376371. The next prime is 389376397. The reversal of 389376388 is 883673983.

It is a super-2 number, since 2×389376388² = 303227943063853088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30258 + ... + 41161.

It is an arithmetic number, because the mean of its divisors is an integer number (29996400).

Almost surely, 2^389376388 is an apocalyptic number.

It is an amenable number.

389376388 is a deficient number, since it is larger than the sum of its proper divisors (330537212).

389376388 is a wasteful number, since it uses less digits than its factorization.

389376388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71499 (or 71497 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The square root of 389376388 is about 19732.6224308884. The cubic root of 389376388 is about 730.2247309595.

The spelling of 389376388 in words is "three hundred eighty-nine million, three hundred seventy-six thousand, three hundred eighty-eight".