190644494 has 8 divisors (see below), whose sum is σ = 302788368. Its totient is φ = 89715040.

The previous prime is 190644491. The next prime is 190644523. The reversal of 190644494 is 494446091.

It is a happy number.

190644494 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190644491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2803562 + ... + 2803629.

It is an arithmetic number, because the mean of its divisors is an integer number (37848546).

Almost surely, 2^190644494 is an apocalyptic number.

190644494 is a deficient number, since it is larger than the sum of its proper divisors (112143874).

190644494 is a wasteful number, since it uses less digits than its factorization.

190644494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607210.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 190644494 is about 13807.4072149698. The cubic root of 190644494 is about 575.5389970512.

The spelling of 190644494 in words is "one hundred ninety million, six hundred forty-four thousand, four hundred ninety-four".