189444200 has 48 divisors (see below), whose sum is σ = 480504960. Its totient is φ = 68888000.

The previous prime is 189444191. The next prime is 189444251. The reversal of 189444200 is 2444981.

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, 40856 + ... + 45255.

It is an arithmetic number, because the mean of its divisors is an integer number (10010520).

Almost surely, 2^189444200 is an apocalyptic number.

189444200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189444200 is an abundant number, since it is smaller than the sum of its proper divisors (291060760).

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

189444200 is a wasteful number, since it uses less digits than its factorization.

189444200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86138 (or 86129 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 189444200 is about 13763.8730014484. The cubic root of 189444200 is about 574.3285925074.

The spelling of 189444200 in words is "one hundred eighty-nine million, four hundred forty-four thousand, two hundred".