389387960 has 32 divisors (see below), whose sum is σ = 943518240. Its totient is φ = 143773824.

The previous prime is 389387951. The next prime is 389387981. The reversal of 389387960 is 69783983.

389387960 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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, 373892 + ... + 374931.

It is an arithmetic number, because the mean of its divisors is an integer number (29484945).

Almost surely, 2^389387960 is an apocalyptic number.

It is an amenable number.

389387960 is an abundant number, since it is smaller than the sum of its proper divisors (554130280).

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

389387960 is a wasteful number, since it uses less digits than its factorization.

389387960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748847 (or 748843 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 389387960 is about 19732.9156487327. The cubic root of 389387960 is about 730.2319648144.

The spelling of 389387960 in words is "three hundred eighty-nine million, three hundred eighty-seven thousand, nine hundred sixty".