189759980 has 12 divisors (see below), whose sum is σ = 398496000. Its totient is φ = 75903984.

The previous prime is 189759943. The next prime is 189759991. The reversal of 189759980 is 89957981.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4743980 + ... + 4744019.

It is an arithmetic number, because the mean of its divisors is an integer number (33208000).

Almost surely, 2^189759980 is an apocalyptic number.

189759980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189759980 is an abundant number, since it is smaller than the sum of its proper divisors (208736020).

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

189759980 is a wasteful number, since it uses less digits than its factorization.

189759980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488008 (or 9488006 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 56.

The square root of 189759980 is about 13775.3395602432. The cubic root of 189759980 is about 574.6475268904.

The spelling of 189759980 in words is "one hundred eighty-nine million, seven hundred fifty-nine thousand, nine hundred eighty".