189288224 has 24 divisors (see below), whose sum is σ = 374604300. Its totient is φ = 94150656.

The previous prime is 189288173. The next prime is 189288233. The reversal of 189288224 is 422882981.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 152078224 + 37210000 = 12332^2 + 6100^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9149 + ... + 21500.

Almost surely, 2^189288224 is an apocalyptic number.

It is an amenable number.

189288224 is a deficient number, since it is larger than the sum of its proper divisors (185316076).

189288224 is a wasteful number, since it uses less digits than its factorization.

189288224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30852 (or 30844 counting only the distinct ones).

The product of its digits is 147456, while the sum is 44.

The square root of 189288224 is about 13758.2056969650. The cubic root of 189288224 is about 574.1709276595.

The spelling of 189288224 in words is "one hundred eighty-nine million, two hundred eighty-eight thousand, two hundred twenty-four".