445513530252 has 192 divisors, whose sum is σ = 1212726509568. Its totient is φ = 124679520000.

The previous prime is 445513530227. The next prime is 445513530263. The reversal of 445513530252 is 252035315544.

It is a self number, because there is not a number n which added to its sum of digits gives 445513530252.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 341913033 + ... + 341914335.

It is an arithmetic number, because the mean of its divisors is an integer number (6316283904).

Almost surely, 2^445513530252 is an apocalyptic number.

445513530252 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445513530252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606363254784).

445513530252 is an abundant number, since it is smaller than the sum of its proper divisors (767212979316).

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

445513530252 is a wasteful number, since it uses less digits than its factorization.

445513530252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 445513530252 its reverse (252035315544), we get a palindrome (697548845796).

The spelling of 445513530252 in words is "four hundred forty-five billion, five hundred thirteen million, five hundred thirty thousand, two hundred fifty-two".