188494680 has 64 divisors (see below), whose sum is σ = 616896000. Its totient is φ = 45695360.

The previous prime is 188494661. The next prime is 188494717. The reversal of 188494680 is 86494881.

188494680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70080 + ... + 72719.

It is an arithmetic number, because the mean of its divisors is an integer number (9639000).

Almost surely, 2^188494680 is an apocalyptic number.

188494680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188494680 is an abundant number, since it is smaller than the sum of its proper divisors (428401320).

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

188494680 is a wasteful number, since it uses less digits than its factorization.

188494680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142824 (or 142820 counting only the distinct ones).

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

The square root of 188494680 is about 13729.3364734061. The cubic root of 188494680 is about 573.3674473422.

The spelling of 188494680 in words is "one hundred eighty-eight million, four hundred ninety-four thousand, six hundred eighty".