188842564 has 9 divisors (see below), whose sum is σ = 330522591. Its totient is φ = 94407540.

The previous prime is 188842559. The next prime is 188842571. The reversal of 188842564 is 465248881.

The square root of 188842564 is 13742.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24049 + ... + 30919.

Almost surely, 2^188842564 is an apocalyptic number.

188842564 is the 13742-nd square number.

It is an amenable number.

188842564 is a deficient number, since it is larger than the sum of its proper divisors (141680027).

188842564 is an frugal number, since it uses more digits than its factorization.

188842564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13746 (or 6873 counting only the distinct ones).

The product of its digits is 491520, while the sum is 46.

The cubic root of 188842564 is about 573.7199644110.

The spelling of 188842564 in words is "one hundred eighty-eight million, eight hundred forty-two thousand, five hundred sixty-four".