189893272 has 16 divisors (see below), whose sum is σ = 359508240. Its totient is φ = 94024416.

The previous prime is 189893251. The next prime is 189893303. The reversal of 189893272 is 272398981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114403 + ... + 116050.

It is an arithmetic number, because the mean of its divisors is an integer number (22469265).

Almost surely, 2^189893272 is an apocalyptic number.

It is an amenable number.

189893272 is a deficient number, since it is larger than the sum of its proper divisors (169614968).

189893272 is a wasteful number, since it uses less digits than its factorization.

189893272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230562 (or 230558 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 189893272 is about 13780.1767768052. The cubic root of 189893272 is about 574.7820441736.

The spelling of 189893272 in words is "one hundred eighty-nine million, eight hundred ninety-three thousand, two hundred seventy-two".