442044220422 has 64 divisors (see below), whose sum is σ = 1023726832128. Its totient is φ = 124641504000.

The previous prime is 442044220399. The next prime is 442044220439. The reversal of 442044220422 is 224022440244.

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 442044220422.

It is a congruent number.

It is an unprimeable number.

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, 773922 + ... + 1217802.

It is an arithmetic number, because the mean of its divisors is an integer number (15995731752).

Almost surely, 2^442044220422 is an apocalyptic number.

442044220422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

442044220422 is an abundant number, since it is smaller than the sum of its proper divisors (581682611706).

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

442044220422 is a wasteful number, since it uses less digits than its factorization.

442044220422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444205.

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

Adding to 442044220422 its reverse (224022440244), we get a palindrome (666066660666).

The spelling of 442044220422 in words is "four hundred forty-two billion, forty-four million, two hundred twenty thousand, four hundred twenty-two".