389517568 has 36 divisors (see below), whose sum is σ = 848202768. Its totient is φ = 177052160.

The previous prime is 389517553. The next prime is 389517593. The reversal of 389517568 is 865715983.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66346 + ... + 71977.

It is an arithmetic number, because the mean of its divisors is an integer number (23561188).

Almost surely, 2^389517568 is an apocalyptic number.

It is an amenable number.

389517568 is an abundant number, since it is smaller than the sum of its proper divisors (458685200).

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

389517568 is a wasteful number, since it uses less digits than its factorization.

389517568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138350 (or 138336 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 52.

The square root of 389517568 is about 19736.1994315015. The cubic root of 389517568 is about 730.3129751994.

The spelling of 389517568 in words is "three hundred eighty-nine million, five hundred seventeen thousand, five hundred sixty-eight".