445523089 has 12 divisors (see below), whose sum is σ = 490770000. Its totient is φ = 404142200.

The previous prime is 445523059. The next prime is 445523093. The reversal of 445523089 is 980325544.

It is a de Polignac number, because none of the positive numbers 2^k-445523089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445523059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55662 + ... + 63160.

It is an arithmetic number, because the mean of its divisors is an integer number (40897500).

Almost surely, 2^445523089 is an apocalyptic number.

It is an amenable number.

445523089 is a deficient number, since it is larger than the sum of its proper divisors (45246911).

445523089 is a wasteful number, since it uses less digits than its factorization.

445523089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8012 (or 8001 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 445523089 is about 21107.4178667122. The cubic root of 445523089 is about 763.7596994919.

The spelling of 445523089 in words is "four hundred forty-five million, five hundred twenty-three thousand, eighty-nine".