190644536 has 16 divisors (see below), whose sum is σ = 357752400. Its totient is φ = 95243904.

The previous prime is 190644523. The next prime is 190644557. The reversal of 190644536 is 635446091.

190644536 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 190644536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280 + ... + 19568.

It is an arithmetic number, because the mean of its divisors is an integer number (22359525).

Almost surely, 2^190644536 is an apocalyptic number.

It is an amenable number.

190644536 is a deficient number, since it is larger than the sum of its proper divisors (167107864).

190644536 is a wasteful number, since it uses less digits than its factorization.

190644536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19598 (or 19594 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 190644536 is about 13807.4087358925. The cubic root of 190644536 is about 575.5390393160.

The spelling of 190644536 in words is "one hundred ninety million, six hundred forty-four thousand, five hundred thirty-six".