189030924 has 72 divisors (see below), whose sum is σ = 514754240. Its totient is φ = 58296672.

The previous prime is 189030917. The next prime is 189030929. The reversal of 189030924 is 429030981.

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 (189030929) 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, 26199 + ... + 32625.

Almost surely, 2^189030924 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 189030924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257377120).

189030924 is an abundant number, since it is smaller than the sum of its proper divisors (325723316).

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

189030924 is a wasteful number, since it uses less digits than its factorization.

189030924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499 (or 6494 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 189030924 is about 13748.8517338722. The cubic root of 189030924 is about 573.9106523227.

The spelling of 189030924 in words is "one hundred eighty-nine million, thirty thousand, nine hundred twenty-four".