445213245252 has 12 divisors (see below), whose sum is σ = 1038830905616. Its totient is φ = 148404415080.

The previous prime is 445213245227. The next prime is 445213245263. The reversal of 445213245252 is 252542312544.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 445213245252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18550551874 + ... + 18550551897.

Almost surely, 2^445213245252 is an apocalyptic number.

It is an amenable number.

445213245252 is an abundant number, since it is smaller than the sum of its proper divisors (593617660364).

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

445213245252 is a wasteful number, since it uses less digits than its factorization.

445213245252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37101103778 (or 37101103776 counting only the distinct ones).

The product of its digits is 384000, while the sum is 39.

Adding to 445213245252 its reverse (252542312544), we get a palindrome (697755557796).

The spelling of 445213245252 in words is "four hundred forty-five billion, two hundred thirteen million, two hundred forty-five thousand, two hundred fifty-two".