189694164 has 48 divisors (see below), whose sum is σ = 484323840. Its totient is φ = 57308640.

The previous prime is 189694159. The next prime is 189694171. The reversal of 189694164 is 461496981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45387 + ... + 49389.

It is an arithmetic number, because the mean of its divisors is an integer number (10090080).

Almost surely, 2^189694164 is an apocalyptic number.

It is an amenable number.

189694164 is an abundant number, since it is smaller than the sum of its proper divisors (294629676).

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

189694164 is a wasteful number, since it uses less digits than its factorization.

189694164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380 (or 4378 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 189694164 is about 13772.9504464367. The cubic root of 189694164 is about 574.5810826468.

The spelling of 189694164 in words is "one hundred eighty-nine million, six hundred ninety-four thousand, one hundred sixty-four".