445798020 has 48 divisors (see below), whose sum is σ = 1257238080. Its totient is φ = 118022016.

The previous prime is 445798019. The next prime is 445798061. The reversal of 445798020 is 20897544.

It is a self number, because there is not a number n which added to its sum of digits gives 445798020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18387 + ... + 35066.

It is an arithmetic number, because the mean of its divisors is an integer number (26192460).

Almost surely, 2^445798020 is an apocalyptic number.

It is an amenable number.

445798020 is an abundant number, since it is smaller than the sum of its proper divisors (811440060).

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

445798020 is a wasteful number, since it uses less digits than its factorization.

445798020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53604 (or 53602 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 445798020 is about 21113.9295253157. The cubic root of 445798020 is about 763.9167718150.

The spelling of 445798020 in words is "four hundred forty-five million, seven hundred ninety-eight thousand, twenty".