189399110 has 16 divisors (see below), whose sum is σ = 341258832. Its totient is φ = 75684000.

The previous prime is 189399109. The next prime is 189399121. The reversal of 189399110 is 11993981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685 + ... + 19535.

It is an arithmetic number, because the mean of its divisors is an integer number (21328677).

Almost surely, 2^189399110 is an apocalyptic number.

189399110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189399110 is a deficient number, since it is larger than the sum of its proper divisors (151859722).

189399110 is a wasteful number, since it uses less digits than its factorization.

189399110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18919.

The product of its (nonzero) digits is 17496, while the sum is 41.

The square root of 189399110 is about 13762.2349202446. The cubic root of 189399110 is about 574.2830231858.

The spelling of 189399110 in words is "one hundred eighty-nine million, three hundred ninety-nine thousand, one hundred ten".