189849172 has 24 divisors (see below), whose sum is σ = 338446080. Its totient is φ = 93162720.

The previous prime is 189849161. The next prime is 189849173. The reversal of 189849172 is 271948981.

189849172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189849173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66478 + ... + 69274.

It is an arithmetic number, because the mean of its divisors is an integer number (14101920).

Almost surely, 2^189849172 is an apocalyptic number.

It is an amenable number.

189849172 is a deficient number, since it is larger than the sum of its proper divisors (148596908).

189849172 is a wasteful number, since it uses less digits than its factorization.

189849172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111 (or 3109 counting only the distinct ones).

The product of its digits is 290304, while the sum is 49.

The square root of 189849172 is about 13778.5765592822. The cubic root of 189849172 is about 574.7375457555.

The spelling of 189849172 in words is "one hundred eighty-nine million, eight hundred forty-nine thousand, one hundred seventy-two".