445989312 has 84 divisors (see below), whose sum is σ = 1319637696. Its totient is φ = 143861760.

The previous prime is 445989311. The next prime is 445989317. The reversal of 445989312 is 213989544.

445989312 is a `hidden beast` number, since 44 + 598 + 9 + 3 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445989311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5368 + ... + 30344.

Almost surely, 2^445989312 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 445989312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659818848).

445989312 is an abundant number, since it is smaller than the sum of its proper divisors (873648384).

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

445989312 is a wasteful number, since it uses less digits than its factorization.

445989312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25026 (or 25013 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 445989312 is about 21118.4590346928. The cubic root of 445989312 is about 764.0260217922.

The spelling of 445989312 in words is "four hundred forty-five million, nine hundred eighty-nine thousand, three hundred twelve".