444648916 has 6 divisors (see below), whose sum is σ = 778135610. Its totient is φ = 222324456.

The previous prime is 444648901. The next prime is 444648961. The reversal of 444648916 is 619846444.

It can be written as a sum of positive squares in only one way, i.e., 400160016 + 44488900 = 20004^2 + 6670^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55581111 + ... + 55581118.

Almost surely, 2^444648916 is an apocalyptic number.

It is an amenable number.

444648916 is a deficient number, since it is larger than the sum of its proper divisors (333486694).

444648916 is a wasteful number, since it uses less digits than its factorization.

444648916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111162233 (or 111162231 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The square root of 444648916 is about 21086.6999788967. The cubic root of 444648916 is about 763.2598411773.

The spelling of 444648916 in words is "four hundred forty-four million, six hundred forty-eight thousand, nine hundred sixteen".