445205312 has 56 divisors (see below), whose sum is σ = 912403560. Its totient is φ = 215377920.

The previous prime is 445205311. The next prime is 445205357. The reversal of 445205312 is 213502544.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 212459776 + 232745536 = 14576^2 + 15256^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445205311) 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, 541862 + ... + 542682.

Almost surely, 2^445205312 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 445205312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456201780).

445205312 is an abundant number, since it is smaller than the sum of its proper divisors (467198248).

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

445205312 is a wasteful number, since it uses less digits than its factorization.

445205312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 445205312 is about 21099.8889096602. Note that the first 3 decimals coincide. The cubic root of 445205312 is about 763.5780680572.

Adding to 445205312 its reverse (213502544), we get a palindrome (658707856).

The spelling of 445205312 in words is "four hundred forty-five million, two hundred five thousand, three hundred twelve".