189272712 has 16 divisors (see below), whose sum is σ = 473181840. Its totient is φ = 63090896.

The previous prime is 189272711. The next prime is 189272731. The reversal of 189272712 is 217272981.

It is not an unprimeable number, because it can be changed into a prime (189272711) 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, 3943158 + ... + 3943205.

It is an arithmetic number, because the mean of its divisors is an integer number (29573865).

Almost surely, 2^189272712 is an apocalyptic number.

189272712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189272712 is an abundant number, since it is smaller than the sum of its proper divisors (283909128).

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

189272712 is a wasteful number, since it uses less digits than its factorization.

189272712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7886372 (or 7886368 counting only the distinct ones).

The product of its digits is 28224, while the sum is 39.

The square root of 189272712 is about 13757.6419491132. The cubic root of 189272712 is about 574.1552429670.

The spelling of 189272712 in words is "one hundred eighty-nine million, two hundred seventy-two thousand, seven hundred twelve".