188068920 has 64 divisors (see below), whose sum is σ = 607612320. Its totient is φ = 46293504.

The previous prime is 188068889. The next prime is 188068921. The reversal of 188068920 is 29860881.

188068920 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188068921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58719 + ... + 61838.

Almost surely, 2^188068920 is an apocalyptic number.

188068920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188068920 is an abundant number, since it is smaller than the sum of its proper divisors (419543400).

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

188068920 is a wasteful number, since it uses less digits than its factorization.

188068920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120584 (or 120580 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 188068920 is about 13713.8222243108. The cubic root of 188068920 is about 572.9354263888.

The spelling of 188068920 in words is "one hundred eighty-eight million, sixty-eight thousand, nine hundred twenty".