389385960 has 64 divisors (see below), whose sum is σ = 1169700480. Its totient is φ = 103699200.

The previous prime is 389385959. The next prime is 389385961. The reversal of 389385960 is 69583983.

It is an interprime number because it is at equal distance from previous prime (389385959) and next prime (389385961).

It is not an unprimeable number, because it can be changed into a prime (389385961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116310 + ... + 119610.

It is an arithmetic number, because the mean of its divisors is an integer number (18276570).

Almost surely, 2^389385960 is an apocalyptic number.

389385960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

389385960 is an abundant number, since it is smaller than the sum of its proper divisors (780314520).

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

389385960 is a wasteful number, since it uses less digits than its factorization.

389385960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298 (or 4294 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 389385960 is about 19732.8649719193. The cubic root of 389385960 is about 730.2307145904.

The spelling of 389385960 in words is "three hundred eighty-nine million, three hundred eighty-five thousand, nine hundred sixty".