389686272 has 44 divisors (see below), whose sum is σ = 1038664176. Its totient is φ = 129894400.

The previous prime is 389686247. The next prime is 389686277. The reversal of 389686272 is 272686983.

It is not an unprimeable number, because it can be changed into a prime (389686277) 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, 60354 + ... + 66497.

It is an arithmetic number, because the mean of its divisors is an integer number (23606004).

Almost surely, 2^389686272 is an apocalyptic number.

389686272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

389686272 is an abundant number, since it is smaller than the sum of its proper divisors (648977904).

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

389686272 is a wasteful number, since it uses less digits than its factorization.

389686272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126874 (or 126856 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 389686272 is about 19740.4729426627. The cubic root of 389686272 is about 730.4183952944.

The spelling of 389686272 in words is "three hundred eighty-nine million, six hundred eighty-six thousand, two hundred seventy-two".