444189656 has 16 divisors (see below), whose sum is σ = 852225000. Its totient is φ = 216929664.

The previous prime is 444189649. The next prime is 444189659. The reversal of 444189656 is 656981444.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 444189656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444189659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645281 + ... + 645968.

Almost surely, 2^444189656 is an apocalyptic number.

It is an amenable number.

444189656 is a deficient number, since it is larger than the sum of its proper divisors (408035344).

444189656 is a wasteful number, since it uses less digits than its factorization.

444189656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291298 (or 1291294 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 444189656 is about 21075.8073629458. The cubic root of 444189656 is about 762.9969705126.

The spelling of 444189656 in words is "four hundred forty-four million, one hundred eighty-nine thousand, six hundred fifty-six".