389921168 has 40 divisors (see below), whose sum is σ = 929815488. Its totient is φ = 154253952.

The previous prime is 389921167. The next prime is 389921201. The reversal of 389921168 is 861129983.

It is not an unprimeable number, because it can be changed into a prime (389921167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132446 + ... + 135357.

Almost surely, 2^389921168 is an apocalyptic number.

It is an amenable number.

389921168 is an abundant number, since it is smaller than the sum of its proper divisors (539894320).

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

389921168 is a wasteful number, since it uses less digits than its factorization.

389921168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267831 (or 267825 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 389921168 is about 19746.4216505168. The cubic root of 389921168 is about 730.5651269173.

The spelling of 389921168 in words is "three hundred eighty-nine million, nine hundred twenty-one thousand, one hundred sixty-eight".