188018944 has 27 divisors (see below), whose sum is σ = 375741877. Its totient is φ = 93899776.

The previous prime is 188018939. The next prime is 188018947. The reversal of 188018944 is 449810881.

The square root of 188018944 is 13712.

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

It can be written as a sum of positive squares in only one way, i.e., 174240000 + 13778944 = 13200^2 + 3712^2 .

It is a super-2 number, since 2×188018944² = 70702246605750272, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 188018944.

It is not an unprimeable number, because it can be changed into a prime (188018947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 218964 + ... + 219820.

Almost surely, 2^188018944 is an apocalyptic number.

188018944 is the 13712-nd square number.

It is an amenable number.

188018944 is a deficient number, since it is larger than the sum of its proper divisors (187722933).

188018944 is an frugal number, since it uses more digits than its factorization.

188018944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The cubic root of 188018944 is about 572.8846727299.

The spelling of 188018944 in words is "one hundred eighty-eight million, eighteen thousand, nine hundred forty-four".