189140684 has 24 divisors (see below), whose sum is σ = 345915360. Its totient is φ = 90320384.

The previous prime is 189140683. The next prime is 189140701. The reversal of 189140684 is 486041981.

It is not an unprimeable number, because it can be changed into a prime (189140683) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 84362 + ... + 86574.

It is an arithmetic number, because the mean of its divisors is an integer number (14413140).

Almost surely, 2^189140684 is an apocalyptic number.

It is an amenable number.

189140684 is a deficient number, since it is larger than the sum of its proper divisors (156774676).

189140684 is a wasteful number, since it uses less digits than its factorization.

189140684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169 (or 3167 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 189140684 is about 13752.8427606804. The cubic root of 189140684 is about 574.0217104213.

The spelling of 189140684 in words is "one hundred eighty-nine million, one hundred forty thousand, six hundred eighty-four".