188504064 has 192 divisors, whose sum is σ = 639475200. Its totient is φ = 53747712.

The previous prime is 188504059. The next prime is 188504081. The reversal of 188504064 is 460405881.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386829 + ... + 387315.

It is an arithmetic number, because the mean of its divisors is an integer number (3330600).

Almost surely, 2^188504064 is an apocalyptic number.

188504064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188504064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319737600).

188504064 is an abundant number, since it is smaller than the sum of its proper divisors (450971136).

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

188504064 is an equidigital number, since it uses as much as digits as its factorization.

188504064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 188504064 is about 13729.6782190989. The cubic root of 188504064 is about 573.3769620065.

The spelling of 188504064 in words is "one hundred eighty-eight million, five hundred four thousand, sixty-four".