188040064 has 32 divisors (see below), whose sum is σ = 380768040. Its totient is φ = 92474880.

The previous prime is 188040059. The next prime is 188040103. The reversal of 188040064 is 460040881.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4234 + ... + 19849.

Almost surely, 2^188040064 is an apocalyptic number.

It is an amenable number.

188040064 is an abundant number, since it is smaller than the sum of its proper divisors (192727976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

188040064 is an equidigital number, since it uses as much as digits as its factorization.

188040064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24158 (or 24146 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 188040064 is about 13712.7701067290. The cubic root of 188040064 is about 572.9061224679.

The spelling of 188040064 in words is "one hundred eighty-eight million, forty thousand, sixty-four".