445270064 has 20 divisors (see below), whose sum is σ = 900220656. Its totient is φ = 212955072.

The previous prime is 445269989. The next prime is 445270093. The reversal of 445270064 is 460072544.

It is a self number, because there is not a number n which added to its sum of digits gives 445270064.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604619 + ... + 605354.

Almost surely, 2^445270064 is an apocalyptic number.

It is an amenable number.

445270064 is an abundant number, since it is smaller than the sum of its proper divisors (454950592).

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

445270064 is a wasteful number, since it uses less digits than its factorization.

445270064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210004 (or 1209998 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 445270064 is about 21101.4232695333. The cubic root of 445270064 is about 763.6150852932.

The spelling of 445270064 in words is "four hundred forty-five million, two hundred seventy thousand, sixty-four".