189875860 has 24 divisors (see below), whose sum is σ = 409517640. Its totient is φ = 73897344.

The previous prime is 189875857. The next prime is 189875953. The reversal of 189875860 is 68578981.

It can be written as a sum of positive squares in 4 ways, for example, as 35022724 + 154853136 = 5918^2 + 12444^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 189875798 and 189875807.

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, 127555 + ... + 129034.

It is an arithmetic number, because the mean of its divisors is an integer number (17063235).

Almost surely, 2^189875860 is an apocalyptic number.

189875860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189875860 is an abundant number, since it is smaller than the sum of its proper divisors (219641780).

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

189875860 is a wasteful number, since it uses less digits than its factorization.

189875860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256635 (or 256633 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 52.

The square root of 189875860 is about 13779.5449852308. The cubic root of 189875860 is about 574.7644756894.

The spelling of 189875860 in words is "one hundred eighty-nine million, eight hundred seventy-five thousand, eight hundred sixty".