188368680 has 64 divisors (see below), whose sum is σ = 573091200. Its totient is φ = 49521920.

The previous prime is 188368669. The next prime is 188368693. The reversal of 188368680 is 86863881.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2535 + ... + 19574.

It is an arithmetic number, because the mean of its divisors is an integer number (8954550).

Almost surely, 2^188368680 is an apocalyptic number.

188368680 is a gapful number since it is divisible by the number (10) 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 188368680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286545600).

188368680 is an abundant number, since it is smaller than the sum of its proper divisors (384722520).

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

188368680 is a wasteful number, since it uses less digits than its factorization.

188368680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22194 (or 22190 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 188368680 is about 13724.7469922035. The cubic root of 188368680 is about 573.2396623004.

The spelling of 188368680 in words is "one hundred eighty-eight million, three hundred sixty-eight thousand, six hundred eighty".