189231504 has 80 divisors (see below), whose sum is σ = 609484800. Its totient is φ = 49150080.

The previous prime is 189231503. The next prime is 189231509. The reversal of 189231504 is 405132981.

It is a super-2 number, since 2×189231504² = 71617124212204032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (189231503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21904 + ... + 29295.

It is an arithmetic number, because the mean of its divisors is an integer number (7618560).

Almost surely, 2^189231504 is an apocalyptic number.

189231504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

189231504 is an abundant number, since it is smaller than the sum of its proper divisors (420253296).

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

189231504 is a wasteful number, since it uses less digits than its factorization.

189231504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51228 (or 51222 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 189231504 is about 13756.1442272172. The cubic root of 189231504 is about 574.1135720428.

The spelling of 189231504 in words is "one hundred eighty-nine million, two hundred thirty-one thousand, five hundred four".