389579432 has 16 divisors (see below), whose sum is σ = 796867200. Its totient is φ = 177081520.

The previous prime is 389579413. The next prime is 389579447. The reversal of 389579432 is 234975983.

It is a happy number.

It is a super-3 number, since 3×389579432³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2213432 + ... + 2213607.

It is an arithmetic number, because the mean of its divisors is an integer number (49804200).

Almost surely, 2^389579432 is an apocalyptic number.

It is an amenable number.

389579432 is an abundant number, since it is smaller than the sum of its proper divisors (407287768).

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

389579432 is a wasteful number, since it uses less digits than its factorization.

389579432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427056 (or 4427052 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The square root of 389579432 is about 19737.7666416441. The cubic root of 389579432 is about 730.3516364340.

The spelling of 389579432 in words is "three hundred eighty-nine million, five hundred seventy-nine thousand, four hundred thirty-two".