445002564 has 48 divisors (see below), whose sum is σ = 1091805120. Its totient is φ = 140864640.

The previous prime is 445002529. The next prime is 445002577. The reversal of 445002564 is 465200544.

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, 10747 + ... + 31709.

It is an arithmetic number, because the mean of its divisors is an integer number (22745940).

Almost surely, 2^445002564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445002564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545902560).

445002564 is an abundant number, since it is smaller than the sum of its proper divisors (646802556).

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

445002564 is a wasteful number, since it uses less digits than its factorization.

445002564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21060 (or 21058 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 445002564 is about 21095.0838822698. The cubic root of 445002564 is about 763.4621384484.

The spelling of 445002564 in words is "four hundred forty-five million, two thousand, five hundred sixty-four".