188899068 has 24 divisors (see below), whose sum is σ = 441286272. Its totient is φ = 62891824.

The previous prime is 188899057. The next prime is 188899091. The reversal of 188899068 is 860998881.

It is a junction number, because it is equal to n+sod(n) for n = 188898999 and 188899017.

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, 1771 + ... + 19517.

It is an arithmetic number, because the mean of its divisors is an integer number (18386928).

Almost surely, 2^188899068 is an apocalyptic number.

It is an amenable number.

188899068 is an abundant number, since it is smaller than the sum of its proper divisors (252387204).

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

188899068 is a wasteful number, since it uses less digits than its factorization.

188899068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18641 (or 18639 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 57.

The square root of 188899068 is about 13744.0557332979. The cubic root of 188899068 is about 573.7771800434. Note that the first 3 decimals are identical.

The spelling of 188899068 in words is "one hundred eighty-eight million, eight hundred ninety-nine thousand, sixty-eight".