188908 has 12 divisors (see below), whose sum is σ = 335160. Its totient is φ = 93152.

The previous prime is 188891. The next prime is 188911. The reversal of 188908 is 809881.

It is an unprimeable number.

188908 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48 + ... + 616.

It is an arithmetic number, because the mean of its divisors is an integer number (27930).

2¹⁸⁸⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

188908 is a deficient number, since it is larger than the sum of its proper divisors (146252).

188908 is a wasteful number, since it uses less digits than its factorization.

188908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 188908 is about 434.6354794538. The cubic root of 188908 is about 57.3786223492.

The spelling of 188908 in words is "one hundred eighty-eight thousand, nine hundred eight".