445867020 has 72 divisors (see below), whose sum is σ = 1389037104. Its totient is φ = 115682688.

The previous prime is 445867013. The next prime is 445867021. The reversal of 445867020 is 20768544.

445867020 is a `hidden beast` number, since 4 + 4 + 586 + 70 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (445867021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26814 + ... + 40133.

It is an arithmetic number, because the mean of its divisors is an integer number (19292182).

Almost surely, 2^445867020 is an apocalyptic number.

It is an amenable number.

445867020 is an abundant number, since it is smaller than the sum of its proper divisors (943170084).

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

445867020 is a wasteful number, since it uses less digits than its factorization.

445867020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66999 (or 66994 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 445867020 is about 21115.5634544759. The cubic root of 445867020 is about 763.9561824417.

The spelling of 445867020 in words is "four hundred forty-five million, eight hundred sixty-seven thousand, twenty".