189272832 has 288 divisors, whose sum is σ = 647539200. Its totient is φ = 47775744.

The previous prime is 189272791. The next prime is 189272857. The reversal of 189272832 is 238272981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1736394 + ... + 1736502.

It is an arithmetic number, because the mean of its divisors is an integer number (2248400).

Almost surely, 2^189272832 is an apocalyptic number.

189272832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189272832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323769600).

189272832 is an abundant number, since it is smaller than the sum of its proper divisors (458266368).

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

189272832 is a wasteful number, since it uses less digits than its factorization.

189272832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 157 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 189272832 is about 13757.6463103250. The cubic root of 189272832 is about 574.1553643062.

The spelling of 189272832 in words is "one hundred eighty-nine million, two hundred seventy-two thousand, eight hundred thirty-two".