42002244442 has 16 divisors (see below), whose sum is σ = 63572884200. Its totient is φ = 20811935232.

The previous prime is 42002244433. The next prime is 42002244481. The reversal of 42002244442 is 24444220024.

It can be written as a sum of positive squares in 4 ways, for example, as 18249578281 + 23752666161 = 135091^2 + 154119^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42002244442.

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 7 ways as a sum of consecutive naturals, for example, 33723 + ... + 291790.

Almost surely, 2^42002244442 is an apocalyptic number.

42002244442 is a deficient number, since it is larger than the sum of its proper divisors (21570639758).

42002244442 is a wasteful number, since it uses less digits than its factorization.

42002244442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326097.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42002244442 its reverse (24444220024), we get a palindrome (66446464466).

It can be divided in two parts, 420022 and 44442, that added together give a palindrome (464464).

The spelling of 42002244442 in words is "forty-two billion, two million, two hundred forty-four thousand, four hundred forty-two".