389404368 has 40 divisors (see below), whose sum is σ = 1117736000. Its totient is φ = 129801312.

The previous prime is 389404333. The next prime is 389404403. The reversal of 389404368 is 863404983.

It is an interprime number because it is at equal distance from previous prime (389404333) and next prime (389404403).

It is a congruent number.

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, 450268 + ... + 451131.

It is an arithmetic number, because the mean of its divisors is an integer number (27943400).

Almost surely, 2^389404368 is an apocalyptic number.

It is an amenable number.

389404368 is an abundant number, since it is smaller than the sum of its proper divisors (728331632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389404368 is a wasteful number, since it uses less digits than its factorization.

389404368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901416 (or 901404 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 389404368 is about 19733.3313963963. The cubic root of 389404368 is about 730.2422214898.

The spelling of 389404368 in words is "three hundred eighty-nine million, four hundred four thousand, three hundred sixty-eight".