445531132 has 18 divisors (see below), whose sum is σ = 805648704. Its totient is φ = 215577720.

The previous prime is 445531111. The next prime is 445531139. The reversal of 445531132 is 231135544.

It is a self number, because there is not a number n which added to its sum of digits gives 445531132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445531139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54108 + ... + 61795.

Almost surely, 2^445531132 is an apocalyptic number.

It is an amenable number.

445531132 is a deficient number, since it is larger than the sum of its proper divisors (360117572).

445531132 is a wasteful number, since it uses less digits than its factorization.

445531132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115969 (or 115936 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 445531132 is about 21107.6083912887. The cubic root of 445531132 is about 763.7642954993.

Adding to 445531132 its reverse (231135544), we get a palindrome (676666676).

The spelling of 445531132 in words is "four hundred forty-five million, five hundred thirty-one thousand, one hundred thirty-two".