189868230 has 24 divisors (see below), whose sum is σ = 493657632. Its totient is φ = 50631504.

The previous prime is 189868229. The next prime is 189868247. The reversal of 189868230 is 32868981.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054734 + ... + 1054913.

It is an arithmetic number, because the mean of its divisors is an integer number (20569068).

Almost surely, 2^189868230 is an apocalyptic number.

189868230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189868230 is an abundant number, since it is smaller than the sum of its proper divisors (303789402).

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

189868230 is a wasteful number, since it uses less digits than its factorization.

189868230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109660 (or 2109657 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 189868230 is about 13779.2681227996. The cubic root of 189868230 is about 574.7567767790.

The spelling of 189868230 in words is "one hundred eighty-nine million, eight hundred sixty-eight thousand, two hundred thirty".