442440213252 has 24 divisors (see below), whose sum is σ = 1032624570432. Its totient is φ = 147442346400.

The previous prime is 442440213251. The next prime is 442440213269. The reversal of 442440213252 is 252312044244.

It is not an unprimeable number, because it can be changed into a prime (442440213251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4666699 + ... + 4760562.

It is an arithmetic number, because the mean of its divisors is an integer number (43026023768).

Almost surely, 2^442440213252 is an apocalyptic number.

It is an amenable number.

442440213252 is an abundant number, since it is smaller than the sum of its proper divisors (590184357180).

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

442440213252 is a wasteful number, since it uses less digits than its factorization.

442440213252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9431179 (or 9431177 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 442440213252 its reverse (252312044244), we get a palindrome (694752257496).

The spelling of 442440213252 in words is "four hundred forty-two billion, four hundred forty million, two hundred thirteen thousand, two hundred fifty-two".