442312213422 has 64 divisors (see below), whose sum is σ = 897177625344. Its totient is φ = 145358115840.

The previous prime is 442312213417. The next prime is 442312213451. The reversal of 442312213422 is 224312213244.

It is a self number, because there is not a number n which added to its sum of digits gives 442312213422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236909733 + ... + 236911599.

It is an arithmetic number, because the mean of its divisors is an integer number (14018400396).

Almost surely, 2^442312213422 is an apocalyptic number.

442312213422 is an abundant number, since it is smaller than the sum of its proper divisors (454865411922).

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

442312213422 is a wasteful number, since it uses less digits than its factorization.

442312213422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313.

The product of its digits is 18432, while the sum is 30.

Adding to 442312213422 its reverse (224312213244), we get a palindrome (666624426666).

The spelling of 442312213422 in words is "four hundred forty-two billion, three hundred twelve million, two hundred thirteen thousand, four hundred twenty-two".