445338986 has 24 divisors (see below), whose sum is σ = 706899780. Its totient is φ = 210387456.

The previous prime is 445338941. The next prime is 445339033. The reversal of 445338986 is 689833544.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 397244761 + 48094225 = 19931^2 + 6935^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416060 + ... + 417128.

Almost surely, 2^445338986 is an apocalyptic number.

445338986 is a deficient number, since it is larger than the sum of its proper divisors (261560794).

445338986 is a wasteful number, since it uses less digits than its factorization.

445338986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686 (or 1667 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 50.

The square root of 445338986 is about 21103.0563189316. The cubic root of 445338986 is about 763.6544824800.

The spelling of 445338986 in words is "four hundred forty-five million, three hundred thirty-eight thousand, nine hundred eighty-six".