188893488 has 80 divisors (see below), whose sum is σ = 560408576. Its totient is φ = 53706240.

The previous prime is 188893483. The next prime is 188893489. The reversal of 188893488 is 884398881.

It is a super-2 number, since 2×188893488² = 71361499617612288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (188893483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73668 + ... + 76188.

Almost surely, 2^188893488 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 188893488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280204288).

188893488 is an abundant number, since it is smaller than the sum of its proper divisors (371515088).

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

188893488 is a wasteful number, since it uses less digits than its factorization.

188893488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762 (or 2756 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 57.

The square root of 188893488 is about 13743.8527349503. The cubic root of 188893488 is about 573.7715302746.

The spelling of 188893488 in words is "one hundred eighty-eight million, eight hundred ninety-three thousand, four hundred eighty-eight".