389180232 has 96 divisors (see below), whose sum is σ = 1246190400. Its totient is φ = 107356032.

The previous prime is 389180221. The next prime is 389180237. The reversal of 389180232 is 232081983.

It is a happy number.

It is a super-2 number, since 2×389180232² = 302922505959147648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (389180237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1303 + ... + 27929.

It is an arithmetic number, because the mean of its divisors is an integer number (12981150).

Almost surely, 2^389180232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389180232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623095200).

389180232 is an abundant number, since it is smaller than the sum of its proper divisors (857010168).

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

389180232 is a wasteful number, since it uses less digits than its factorization.

389180232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26675 (or 26668 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 389180232 is about 19727.6514567751. The cubic root of 389180232 is about 730.1020886811.

The spelling of 389180232 in words is "three hundred eighty-nine million, one hundred eighty thousand, two hundred thirty-two".