189927472 has 20 divisors (see below), whose sum is σ = 420553936. Its totient is φ = 81397440.

The previous prime is 189927443. The next prime is 189927473. The reversal of 189927472 is 274729981.

It is not an unprimeable number, because it can be changed into a prime (189927473) 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, 847779 + ... + 848002.

Almost surely, 2^189927472 is an apocalyptic number.

It is an amenable number.

189927472 is an abundant number, since it is smaller than the sum of its proper divisors (230626464).

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

189927472 is a wasteful number, since it uses less digits than its factorization.

189927472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695796 (or 1695790 counting only the distinct ones).

The product of its digits is 508032, while the sum is 49.

The square root of 189927472 is about 13781.4176339011. The cubic root of 189927472 is about 574.8165484080.

The spelling of 189927472 in words is "one hundred eighty-nine million, nine hundred twenty-seven thousand, four hundred seventy-two".