188900472 has 32 divisors (see below), whose sum is σ = 492785280. Its totient is φ = 60228960.

The previous prime is 188900381. The next prime is 188900501. The reversal of 188900472 is 274009881.

It is a self number, because there is not a number n which added to its sum of digits gives 188900472.

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, 170554 + ... + 171657.

It is an arithmetic number, because the mean of its divisors is an integer number (15399540).

Almost surely, 2^188900472 is an apocalyptic number.

188900472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188900472 is an abundant number, since it is smaller than the sum of its proper divisors (303884808).

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

188900472 is a wasteful number, since it uses less digits than its factorization.

188900472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342243 (or 342239 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 188900472 is about 13744.1068098294. The cubic root of 188900472 is about 573.7786015806.

The spelling of 188900472 in words is "one hundred eighty-eight million, nine hundred thousand, four hundred seventy-two".