189886194 has 40 divisors (see below), whose sum is σ = 435396720. Its totient is φ = 61821144.

The previous prime is 189886153. The next prime is 189886219. The reversal of 189886194 is 491688981.

189886194 is a `hidden beast` number, since 18 + 9 + 8 + 8 + 619 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 189886194.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6664 + ... + 20595.

It is an arithmetic number, because the mean of its divisors is an integer number (10884918).

Almost surely, 2^189886194 is an apocalyptic number.

189886194 is an abundant number, since it is smaller than the sum of its proper divisors (245510526).

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

189886194 is a wasteful number, since it uses less digits than its factorization.

189886194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27316 (or 27307 counting only the distinct ones).

The product of its digits is 995328, while the sum is 54.

The square root of 189886194 is about 13779.9199562262. The cubic root of 189886194 is about 574.7749026921.

The spelling of 189886194 in words is "one hundred eighty-nine million, eight hundred eighty-six thousand, one hundred ninety-four".