445244920800 has 144 divisors (see below), whose sum is σ = 1525549858560. Its totient is φ = 112482915840.

The previous prime is 445244920787. The next prime is 445244920859. The reversal of 445244920800 is 8029442544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4836472 + ... + 4927671.

It is an arithmetic number, because the mean of its divisors is an integer number (10594096240).

Almost surely, 2^445244920800 is an apocalyptic number.

445244920800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445244920800 is an abundant number, since it is smaller than the sum of its proper divisors (1080304937760).

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

445244920800 is a wasteful number, since it uses less digits than its factorization.

445244920800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9764185 (or 9764172 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 445244920800 in words is "four hundred forty-five billion, two hundred forty-four million, nine hundred twenty thousand, eight hundred".