188185968 has 60 divisors (see below), whose sum is σ = 528768240. Its totient is φ = 62477568.

The previous prime is 188185919. The next prime is 188185999. The reversal of 188185968 is 869581881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35388 + ... + 40356.

It is an arithmetic number, because the mean of its divisors is an integer number (8812804).

Almost surely, 2^188185968 is an apocalyptic number.

188185968 is a gapful number since it is divisible by the number (18) 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 188185968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264384120).

188185968 is an abundant number, since it is smaller than the sum of its proper divisors (340582272).

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

188185968 is a wasteful number, since it uses less digits than its factorization.

188185968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5246 (or 5237 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 54.

The square root of 188185968 is about 13718.0890797516. The cubic root of 188185968 is about 573.0542605524.

The spelling of 188185968 in words is "one hundred eighty-eight million, one hundred eighty-five thousand, nine hundred sixty-eight".