189879132 has 24 divisors (see below), whose sum is σ = 449122576. Its totient is φ = 62425728.

The previous prime is 189879127. The next prime is 189879181. The reversal of 189879132 is 231978981.

189879132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 107503 + ... + 109254.

Almost surely, 2^189879132 is an apocalyptic number.

189879132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189879132 is an abundant number, since it is smaller than the sum of its proper divisors (259243444).

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

189879132 is a wasteful number, since it uses less digits than its factorization.

189879132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216837 (or 216835 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 189879132 is about 13779.6637114263. The cubic root of 189879132 is about 574.7677771773.

The spelling of 189879132 in words is "one hundred eighty-nine million, eight hundred seventy-nine thousand, one hundred thirty-two".