445213252 has 24 divisors (see below), whose sum is σ = 858376512. Its totient is φ = 200364000.

The previous prime is 445213243. The next prime is 445213259. The reversal of 445213252 is 252312544.

It is a self number, because there is not a number n which added to its sum of digits gives 445213252.

It is not an unprimeable number, because it can be changed into a prime (445213259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45648 + ... + 54535.

It is an arithmetic number, because the mean of its divisors is an integer number (35765688).

Almost surely, 2^445213252 is an apocalyptic number.

It is an amenable number.

445213252 is a deficient number, since it is larger than the sum of its proper divisors (413163260).

445213252 is a wasteful number, since it uses less digits than its factorization.

445213252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100299 (or 100297 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 445213252 is about 21100.0770614707. The cubic root of 445213252 is about 763.5826073665.

Adding to 445213252 its reverse (252312544), we get a palindrome (697525796).

The spelling of 445213252 in words is "four hundred forty-five million, two hundred thirteen thousand, two hundred fifty-two".