188860930 has 16 divisors (see below), whose sum is σ = 341478144. Its totient is φ = 75204720.

The previous prime is 188860909. The next prime is 188860949. The reversal of 188860930 is 39068881.

It is a happy 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, 40116 + ... + 44575.

It is an arithmetic number, because the mean of its divisors is an integer number (21342384).

Almost surely, 2^188860930 is an apocalyptic number.

188860930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188860930 is a deficient number, since it is larger than the sum of its proper divisors (152617214).

188860930 is a wasteful number, since it uses less digits than its factorization.

188860930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84921.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 188860930 is about 13742.6682270948. The cubic root of 188860930 is about 573.7385629710.

The spelling of 188860930 in words is "one hundred eighty-eight million, eight hundred sixty thousand, nine hundred thirty".