445926664 has 16 divisors (see below), whose sum is σ = 858710700. Its totient is φ = 216937152.

The previous prime is 445926631. The next prime is 445926671. The reversal of 445926664 is 466629544.

It can be written as a sum of positive squares in 2 ways, for example, as 333354564 + 112572100 = 18258^2 + 10610^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752959 + ... + 753550.

Almost surely, 2^445926664 is an apocalyptic number.

It is an amenable number.

445926664 is a deficient number, since it is larger than the sum of its proper divisors (412784036).

445926664 is a wasteful number, since it uses less digits than its factorization.

445926664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506552 (or 1506548 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The square root of 445926664 is about 21116.9757304402. The cubic root of 445926664 is about 763.9902459396.

The spelling of 445926664 in words is "four hundred forty-five million, nine hundred twenty-six thousand, six hundred sixty-four".