188669950 has 48 divisors (see below), whose sum is σ = 407679264. Its totient is φ = 63619200.

The previous prime is 188669881. The next prime is 188670037. The reversal of 188669950 is 59966881.

It is a Smith number, since the sum of its digits (52) 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 23 ways as a sum of consecutive naturals, for example, 16932 + ... + 25768.

It is an arithmetic number, because the mean of its divisors is an integer number (8493318).

Almost surely, 2^188669950 is an apocalyptic number.

188669950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188669950 is an abundant number, since it is smaller than the sum of its proper divisors (219009314).

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

188669950 is a wasteful number, since it uses less digits than its factorization.

188669950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8917 (or 8912 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 52.

The square root of 188669950 is about 13735.7180372924. The cubic root of 188669950 is about 573.5451057262.

The spelling of 188669950 in words is "one hundred eighty-eight million, six hundred sixty-nine thousand, nine hundred fifty".