188868368 has 80 divisors (see below), whose sum is σ = 430972416. Its totient is φ = 79349760.

The previous prime is 188868353. The next prime is 188868373. The reversal of 188868368 is 863868881.

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, 108755 + ... + 110477.

Almost surely, 2^188868368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188868368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215486208).

188868368 is an abundant number, since it is smaller than the sum of its proper divisors (242104048).

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

188868368 is a wasteful number, since it uses less digits than its factorization.

188868368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792 (or 1786 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 56.

The square root of 188868368 is about 13742.9388414560. The cubic root of 188868368 is about 573.7460948119.

The spelling of 188868368 in words is "one hundred eighty-eight million, eight hundred sixty-eight thousand, three hundred sixty-eight".