445632016 has 20 divisors (see below), whose sum is σ = 914201532. Its totient is φ = 209709056.

The previous prime is 445632013. The next prime is 445632017. The reversal of 445632016 is 610236544.

It can be written as a sum of positive squares in 2 ways, for example, as 132342016 + 313290000 = 11504^2 + 17700^2 .

It is not an unprimeable number, because it can be changed into a prime (445632013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 818905 + ... + 819448.

Almost surely, 2^445632016 is an apocalyptic number.

It is an amenable number.

445632016 is an abundant number, since it is smaller than the sum of its proper divisors (468569516).

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

445632016 is a wasteful number, since it uses less digits than its factorization.

445632016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638378 (or 1638372 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 445632016 is about 21109.9980104215. The cubic root of 445632016 is about 763.8219388952.

The spelling of 445632016 in words is "four hundred forty-five million, six hundred thirty-two thousand, sixteen".