190189744 has 30 divisors (see below), whose sum is σ = 391453244. Its totient is φ = 89498880.

The previous prime is 190189733. The next prime is 190189763. The reversal of 190189744 is 447981091.

It is a self number, because there is not a number n which added to its sum of digits gives 190189744.

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 5 ways as a sum of consecutive naturals, for example, 15942 + ... + 25189.

Almost surely, 2^190189744 is an apocalyptic number.

It is an amenable number.

190189744 is an abundant number, since it is smaller than the sum of its proper divisors (201263500).

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

190189744 is a wasteful number, since it uses less digits than its factorization.

190189744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41173 (or 41150 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 190189744 is about 13790.9297728616. The cubic root of 190189744 is about 575.0810159317.

The spelling of 190189744 in words is "one hundred ninety million, one hundred eighty-nine thousand, seven hundred forty-four".