445808868 has 12 divisors (see below), whose sum is σ = 1040220720. Its totient is φ = 148602952.

The previous prime is 445808827. The next prime is 445808899. The reversal of 445808868 is 868808544.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 445808868.

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, 18575358 + ... + 18575381.

It is an arithmetic number, because the mean of its divisors is an integer number (86685060).

Almost surely, 2^445808868 is an apocalyptic number.

It is an amenable number.

445808868 is an abundant number, since it is smaller than the sum of its proper divisors (594411852).

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

445808868 is a wasteful number, since it uses less digits than its factorization.

445808868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37150746 (or 37150744 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 51.

The square root of 445808868 is about 21114.1864157727. The cubic root of 445808868 is about 763.9229681204.

The spelling of 445808868 in words is "four hundred forty-five million, eight hundred eight thousand, eight hundred sixty-eight".