188989670 has 16 divisors (see below), whose sum is σ = 340504560. Its totient is φ = 75524064.

The previous prime is 188989649. The next prime is 188989699. The reversal of 188989670 is 76989881.

It is a happy number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 2816 + ... + 19644.

It is an arithmetic number, because the mean of its divisors is an integer number (21281535).

Almost surely, 2^188989670 is an apocalyptic number.

188989670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188989670 is a deficient number, since it is larger than the sum of its proper divisors (151514890).

188989670 is a wasteful number, since it uses less digits than its factorization.

188989670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17959.

The product of its (nonzero) digits is 1741824, while the sum is 56.

The square root of 188989670 is about 13747.3513812661. The cubic root of 188989670 is about 573.8688993084.

The spelling of 188989670 in words is "one hundred eighty-eight million, nine hundred eighty-nine thousand, six hundred seventy".