188331268 has 24 divisors (see below), whose sum is σ = 362013120. Its totient is φ = 85330080.

The previous prime is 188331259. The next prime is 188331281. The reversal of 188331268 is 862133881.

It is a self number, because there is not a number n which added to its sum of digits gives 188331268.

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, 52123 + ... + 55618.

It is an arithmetic number, because the mean of its divisors is an integer number (15083880).

Almost surely, 2^188331268 is an apocalyptic number.

It is an amenable number.

188331268 is a deficient number, since it is larger than the sum of its proper divisors (173681852).

188331268 is a wasteful number, since it uses less digits than its factorization.

188331268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107787 (or 107785 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 188331268 is about 13723.3839850089. The cubic root of 188331268 is about 573.2017093134.

The spelling of 188331268 in words is "one hundred eighty-eight million, three hundred thirty-one thousand, two hundred sixty-eight".