189795888 has 240 divisors, whose sum is σ = 604461312. Its totient is φ = 55296000.

The previous prime is 189795877. The next prime is 189795889. The reversal of 189795888 is 888597981.

It is not an unprimeable number, because it can be changed into a prime (189795889) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3111378 + ... + 3111438.

Almost surely, 2^189795888 is an apocalyptic number.

189795888 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 189795888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302230656).

189795888 is an abundant number, since it is smaller than the sum of its proper divisors (414665424).

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

189795888 is a wasteful number, since it uses less digits than its factorization.

189795888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 155 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 63.

The square root of 189795888 is about 13776.6428421441. The cubic root of 189795888 is about 574.6837711712.

The spelling of 189795888 in words is "one hundred eighty-nine million, seven hundred ninety-five thousand, eight hundred eighty-eight".