189272608 has 96 divisors (see below), whose sum is σ = 445713408. Its totient is φ = 77414400.

The previous prime is 189272579. The next prime is 189272609. The reversal of 189272608 is 806272981.

It is not an unprimeable number, because it can be changed into a prime (189272609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673428 + ... + 673708.

It is an arithmetic number, because the mean of its divisors is an integer number (4642848).

Almost surely, 2^189272608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189272608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222856704).

189272608 is an abundant number, since it is smaller than the sum of its proper divisors (256440800).

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

189272608 is a wasteful number, since it uses less digits than its factorization.

189272608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 189272608 is about 13757.6381693952. The cubic root of 189272608 is about 574.1551378063.

The spelling of 189272608 in words is "one hundred eighty-nine million, two hundred seventy-two thousand, six hundred eight".