188990124 has 12 divisors (see below), whose sum is σ = 440976984. Its totient is φ = 62996704.

The previous prime is 188990069. The next prime is 188990147. The reversal of 188990124 is 421099881.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 7874577 + ... + 7874600.

It is an arithmetic number, because the mean of its divisors is an integer number (36748082).

Almost surely, 2^188990124 is an apocalyptic number.

It is an amenable number.

188990124 is an abundant number, since it is smaller than the sum of its proper divisors (251986860).

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

188990124 is a wasteful number, since it uses less digits than its factorization.

188990124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15749184 (or 15749182 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 188990124 is about 13747.3678935278. The cubic root of 188990124 is about 573.8693588331.

The spelling of 188990124 in words is "one hundred eighty-eight million, nine hundred ninety thousand, one hundred twenty-four".