389462028 has 24 divisors (see below), whose sum is σ = 909514032. Its totient is φ = 129710784.

The previous prime is 389461999. The next prime is 389462033. The reversal of 389462028 is 820264983.

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, 1726 + ... + 27962.

It is an arithmetic number, because the mean of its divisors is an integer number (37896418).

Almost surely, 2^389462028 is an apocalyptic number.

It is an amenable number.

389462028 is an abundant number, since it is smaller than the sum of its proper divisors (520052004).

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

389462028 is a wasteful number, since it uses less digits than its factorization.

389462028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27481 (or 27479 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 389462028 is about 19734.7923221908. The cubic root of 389462028 is about 730.2782625925.

The spelling of 389462028 in words is "three hundred eighty-nine million, four hundred sixty-two thousand, twenty-eight".