389162988 has 24 divisors (see below), whose sum is σ = 1008941360. Its totient is φ = 129720960.

The previous prime is 389162987. The next prime is 389162993. The reversal of 389162988 is 889261983.

It is a happy number.

389162988 is a `hidden beast` number, since 3 + 8 + 9 + 1 + 629 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (389162987) 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, 1801573 + ... + 1801788.

Almost surely, 2^389162988 is an apocalyptic number.

It is an amenable number.

389162988 is an abundant number, since it is smaller than the sum of its proper divisors (619778372).

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

389162988 is a wasteful number, since it uses less digits than its factorization.

389162988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603374 (or 3603366 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 389162988 is about 19727.2144004165. The cubic root of 389162988 is about 730.0913052743.

The spelling of 389162988 in words is "three hundred eighty-nine million, one hundred sixty-two thousand, nine hundred eighty-eight".