188800642 has 16 divisors (see below), whose sum is σ = 286020000. Its totient is φ = 93464640.

The previous prime is 188800639. The next prime is 188800669. The reversal of 188800642 is 246008881.

It is a super-2 number, since 2×188800642² = 71291364839224328, which contains 22 as substring.

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, 138042 + ... + 139402.

It is an arithmetic number, because the mean of its divisors is an integer number (17876250).

Almost surely, 2^188800642 is an apocalyptic number.

188800642 is a deficient number, since it is larger than the sum of its proper divisors (97219358).

188800642 is a wasteful number, since it uses less digits than its factorization.

188800642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001.

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 188800642 is about 13740.4745915125. The cubic root of 188800642 is about 573.6775070542.

The spelling of 188800642 in words is "one hundred eighty-eight million, eight hundred thousand, six hundred forty-two".