189968888 has 16 divisors (see below), whose sum is σ = 356793360. Its totient is φ = 94824000.

The previous prime is 189968887. The next prime is 189968893. The reversal of 189968888 is 888869981.

189968888 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189968881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14948 + ... + 24563.

It is an arithmetic number, because the mean of its divisors is an integer number (22299585).

Almost surely, 2^189968888 is an apocalyptic number.

It is an amenable number.

189968888 is a deficient number, since it is larger than the sum of its proper divisors (166824472).

189968888 is a wasteful number, since it uses less digits than its factorization.

189968888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40118 (or 40114 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 65.

The square root of 189968888 is about 13782.9201550325. The cubic root of 189968888 is about 574.8583272893.

The spelling of 189968888 in words is "one hundred eighty-nine million, nine hundred sixty-eight thousand, eight hundred eighty-eight".