42442212423 has 32 divisors (see below), whose sum is σ = 61481254912. Its totient is φ = 25887859200.

The previous prime is 42442212403. The next prime is 42442212457. The reversal of 42442212423 is 32421224424.

It is a happy number.

It is not a de Polignac number, because 42442212423 - 2¹⁷ = 42442081351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42442212403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6093663 + ... + 6100623.

It is an arithmetic number, because the mean of its divisors is an integer number (1921289216).

Almost surely, 2^42442212423 is an apocalyptic number.

42442212423 is a deficient number, since it is larger than the sum of its proper divisors (19039042489).

42442212423 is a wasteful number, since it uses less digits than its factorization.

42442212423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8335.

The product of its digits is 24576, while the sum is 30.

Adding to 42442212423 its reverse (32421224424), we get a palindrome (74863436847).

The spelling of 42442212423 in words is "forty-two billion, four hundred forty-two million, two hundred twelve thousand, four hundred twenty-three".