444989616 has 40 divisors (see below), whose sum is σ = 1150968000. Its totient is φ = 148147776.

The previous prime is 444989609. The next prime is 444989683. The reversal of 444989616 is 616989444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37135 + ... + 47633.

It is an arithmetic number, because the mean of its divisors is an integer number (28774200).

Almost surely, 2^444989616 is an apocalyptic number.

It is an amenable number.

444989616 is an abundant number, since it is smaller than the sum of its proper divisors (705978384).

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

444989616 is a wasteful number, since it uses less digits than its factorization.

444989616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11393 (or 11387 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 444989616 is about 21094.7769838887. The cubic root of 444989616 is about 763.4547336943.

The spelling of 444989616 in words is "four hundred forty-four million, nine hundred eighty-nine thousand, six hundred sixteen".