189527980 has 12 divisors (see below), whose sum is σ = 398008800. Its totient is φ = 75811184.

The previous prime is 189527977. The next prime is 189527999. The reversal of 189527980 is 89725981.

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, 4738180 + ... + 4738219.

It is an arithmetic number, because the mean of its divisors is an integer number (33167400).

Almost surely, 2^189527980 is an apocalyptic number.

189527980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189527980 is an abundant number, since it is smaller than the sum of its proper divisors (208480820).

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

189527980 is a wasteful number, since it uses less digits than its factorization.

189527980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9476408 (or 9476406 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 49.

The square root of 189527980 is about 13766.9161397896. The cubic root of 189527980 is about 574.4132439212.

The spelling of 189527980 in words is "one hundred eighty-nine million, five hundred twenty-seven thousand, nine hundred eighty".