189130304 has 56 divisors (see below), whose sum is σ = 433535328. Its totient is φ = 80906240.

The previous prime is 189130289. The next prime is 189130327. The reversal of 189130304 is 403031981.

It is a super-2 number, since 2×189130304² = 71540543782264832, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4067 + ... + 19869.

Almost surely, 2^189130304 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 189130304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216767664).

189130304 is an abundant number, since it is smaller than the sum of its proper divisors (244405024).

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

189130304 is a wasteful number, since it uses less digits than its factorization.

189130304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15843 (or 15833 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 189130304 is about 13752.4653789784. The cubic root of 189130304 is about 574.0112095000.

The spelling of 189130304 in words is "one hundred eighty-nine million, one hundred thirty thousand, three hundred four".