42434444442 has 16 divisors (see below), whose sum is σ = 91397265120. Its totient is φ = 13056752112.

The previous prime is 42434444431. The next prime is 42434444443. The reversal of 42434444442 is 24444443424.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 42434444442.

It is not an unprimeable number, because it can be changed into a prime (42434444443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272015592 + ... + 272015747.

It is an arithmetic number, because the mean of its divisors is an integer number (5712329070).

Almost surely, 2^42434444442 is an apocalyptic number.

42434444442 is an abundant number, since it is smaller than the sum of its proper divisors (48962820678).

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

42434444442 is a wasteful number, since it uses less digits than its factorization.

42434444442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544031357.

The product of its digits is 786432, while the sum is 39.

Adding to 42434444442 its reverse (24444443424), we get a palindrome (66878887866).

The spelling of 42434444442 in words is "forty-two billion, four hundred thirty-four million, four hundred forty-four thousand, four hundred forty-two".