442004442222 has 64 divisors (see below), whose sum is σ = 1038039275520. Its totient is φ = 122821940736.

The previous prime is 442004442161. The next prime is 442004442223. The reversal of 442004442222 is 222244400244.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 442004442222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442004442223) 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 31 ways as a sum of consecutive naturals, for example, 3697179 + ... + 3814857.

It is an arithmetic number, because the mean of its divisors is an integer number (16219363680).

Almost surely, 2^442004442222 is an apocalyptic number.

442004442222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 442004442222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519019637760).

442004442222 is an abundant number, since it is smaller than the sum of its proper divisors (596034833298).

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

442004442222 is a wasteful number, since it uses less digits than its factorization.

442004442222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120145.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 442004442222 its reverse (222244400244), we get a palindrome (664248842466).

The spelling of 442004442222 in words is "four hundred forty-two billion, four million, four hundred forty-two thousand, two hundred twenty-two".