188055972 has 96 divisors (see below), whose sum is σ = 556012800. Its totient is φ = 54452736.

The previous prime is 188055953. The next prime is 188055983. The reversal of 188055972 is 279550881.

It is a happy number.

188055972 is a `hidden beast` number, since 18 + 80 + 559 + 7 + 2 = 666.

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, 19929 + ... + 27807.

It is an arithmetic number, because the mean of its divisors is an integer number (5791800).

Almost surely, 2^188055972 is an apocalyptic number.

188055972 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 188055972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278006400).

188055972 is an abundant number, since it is smaller than the sum of its proper divisors (367956828).

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

188055972 is a wasteful number, since it uses less digits than its factorization.

188055972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7922 (or 7914 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 188055972 is about 13713.3501377308. The cubic root of 188055972 is about 572.9222777726.

The spelling of 188055972 in words is "one hundred eighty-eight million, fifty-five thousand, nine hundred seventy-two".