189592644 has 12 divisors (see below), whose sum is σ = 442382864. Its totient is φ = 63197544.

The previous prime is 189592631. The next prime is 189592661. The reversal of 189592644 is 446295981.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 189592593 and 189592602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7899682 + ... + 7899705.

Almost surely, 2^189592644 is an apocalyptic number.

It is an amenable number.

189592644 is an abundant number, since it is smaller than the sum of its proper divisors (252790220).

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

189592644 is a wasteful number, since it uses less digits than its factorization.

189592644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15799394 (or 15799392 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 189592644 is about 13769.2644683730. The cubic root of 189592644 is about 574.4785634491.

The spelling of 189592644 in words is "one hundred eighty-nine million, five hundred ninety-two thousand, six hundred forty-four".