188639648 has 24 divisors (see below), whose sum is σ = 373447620. Its totient is φ = 93795840.

The previous prime is 188639641. The next prime is 188639663. The reversal of 188639648 is 846936881.

188639648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 188567824 + 71824 = 13732^2 + 268^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 188639648.

It is not an unprimeable number, because it can be changed into a prime (188639641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10493 + ... + 22076.

Almost surely, 2^188639648 is an apocalyptic number.

It is an amenable number.

188639648 is a deficient number, since it is larger than the sum of its proper divisors (184807972).

188639648 is a wasteful number, since it uses less digits than its factorization.

188639648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32760 (or 32752 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 53.

The square root of 188639648 is about 13734.6149563794. The cubic root of 188639648 is about 573.5143986735.

The spelling of 188639648 in words is "one hundred eighty-eight million, six hundred thirty-nine thousand, six hundred forty-eight".