189244904 has 8 divisors (see below), whose sum is σ = 354834210. Its totient is φ = 94622448.

The previous prime is 189244903. The next prime is 189245011. The reversal of 189244904 is 409442981.

It can be written as a sum of positive squares in only one way, i.e., 143952004 + 45292900 = 11998^2 + 6730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (189244903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11827799 + ... + 11827814.

Almost surely, 2^189244904 is an apocalyptic number.

It is an amenable number.

189244904 is a deficient number, since it is larger than the sum of its proper divisors (165589306).

189244904 is a wasteful number, since it uses less digits than its factorization.

189244904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23655619 (or 23655615 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 189244904 is about 13756.6312736803. The cubic root of 189244904 is about 574.1271232400.

The spelling of 189244904 in words is "one hundred eighty-nine million, two hundred forty-four thousand, nine hundred four".