189860 has 24 divisors (see below), whose sum is σ = 435456. Its totient is φ = 68960.

The previous prime is 189859. The next prime is 189877. The reversal of 189860 is 68981.

189860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 212 + ... + 651.

It is an arithmetic number, because the mean of its divisors is an integer number (18144).

2¹⁸⁹⁸⁶⁰ is an apocalyptic number.

189860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189860 is an abundant number, since it is smaller than the sum of its proper divisors (245596).

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

189860 is a wasteful number, since it uses less digits than its factorization.

189860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 189860 is about 435.7292737469. The cubic root of 189860 is about 57.4748472218.

The spelling of 189860 in words is "one hundred eighty-nine thousand, eight hundred sixty".