445515312 has 40 divisors (see below), whose sum is σ = 1255544640. Its totient is φ = 135004480.

The previous prime is 445515293. The next prime is 445515319. The reversal of 445515312 is 213515544.

It is a self number, because there is not a number n which added to its sum of digits gives 445515312.

It is not an unprimeable number, because it can be changed into a prime (445515319) 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 7 ways as a sum of consecutive naturals, for example, 421362 + ... + 422417.

It is an arithmetic number, because the mean of its divisors is an integer number (31388616).

Almost surely, 2^445515312 is an apocalyptic number.

It is an amenable number.

445515312 is an abundant number, since it is smaller than the sum of its proper divisors (810029328).

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

445515312 is a wasteful number, since it uses less digits than its factorization.

445515312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843801 (or 843795 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 445515312 is about 21107.2336415742. The cubic root of 445515312 is about 763.7552554321.

The spelling of 445515312 in words is "four hundred forty-five million, five hundred fifteen thousand, three hundred twelve".