190640244 has 48 divisors (see below), whose sum is σ = 472058496. Its totient is φ = 59673600.

The previous prime is 190640221. The next prime is 190640251. The reversal of 190640244 is 442046091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127984 + ... + 129464.

It is an arithmetic number, because the mean of its divisors is an integer number (9834552).

Almost surely, 2^190640244 is an apocalyptic number.

It is an amenable number.

190640244 is an abundant number, since it is smaller than the sum of its proper divisors (281418252).

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

190640244 is a wasteful number, since it uses less digits than its factorization.

190640244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136 (or 2134 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 190640244 is about 13807.2533112129. The cubic root of 190640244 is about 575.5347202271.

The spelling of 190640244 in words is "one hundred ninety million, six hundred forty thousand, two hundred forty-four".