389520528 has 20 divisors (see below), whose sum is σ = 1006261488. Its totient is φ = 129840160.

The previous prime is 389520517. The next prime is 389520529. The reversal of 389520528 is 825025983.

It is a self number, because there is not a number n which added to its sum of digits gives 389520528.

It is not an unprimeable number, because it can be changed into a prime (389520529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4057458 + ... + 4057553.

Almost surely, 2^389520528 is an apocalyptic number.

It is an amenable number.

389520528 is an abundant number, since it is smaller than the sum of its proper divisors (616740960).

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

389520528 is a wasteful number, since it uses less digits than its factorization.

389520528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8115022 (or 8115016 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 389520528 is about 19736.2744204675. The cubic root of 389520528 is about 730.3148251124.

The spelling of 389520528 in words is "three hundred eighty-nine million, five hundred twenty thousand, five hundred twenty-eight".