189197264 has 20 divisors (see below), whose sum is σ = 382508256. Its totient is φ = 90485472.

The previous prime is 189197263. The next prime is 189197273. The reversal of 189197264 is 462791981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189197263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256694 + ... + 257429.

Almost surely, 2^189197264 is an apocalyptic number.

It is an amenable number.

189197264 is an abundant number, since it is smaller than the sum of its proper divisors (193310992).

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

189197264 is a wasteful number, since it uses less digits than its factorization.

189197264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514154 (or 514148 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 189197264 is about 13754.8996361297. The cubic root of 189197264 is about 574.0789427941.

The spelling of 189197264 in words is "one hundred eighty-nine million, one hundred ninety-seven thousand, two hundred sixty-four".