188090364 has 96 divisors (see below), whose sum is σ = 550029312. Its totient is φ = 48600000.

The previous prime is 188090359. The next prime is 188090377. The reversal of 188090364 is 463090881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231519 + ... + 232329.

It is an arithmetic number, because the mean of its divisors is an integer number (5729472).

Almost surely, 2^188090364 is an apocalyptic number.

188090364 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 188090364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275014656).

188090364 is an abundant number, since it is smaller than the sum of its proper divisors (361938948).

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

188090364 is a wasteful number, since it uses less digits than its factorization.

188090364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 188090364 is about 13714.6040409485. The cubic root of 188090364 is about 572.9572013147.

The spelling of 188090364 in words is "one hundred eighty-eight million, ninety thousand, three hundred sixty-four".