442334421023 has 16 divisors (see below), whose sum is σ = 488146852512. Its totient is φ = 397468800000.

The previous prime is 442334421013. The next prime is 442334421029. The reversal of 442334421023 is 320124433244.

It is a cyclic number.

It is not a de Polignac number, because 442334421023 - 2¹⁰ = 442334419999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442334421029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323123 + ... + 994523.

It is an arithmetic number, because the mean of its divisors is an integer number (30509178282).

Almost surely, 2^442334421023 is an apocalyptic number.

442334421023 is a deficient number, since it is larger than the sum of its proper divisors (45812431489).

442334421023 is a wasteful number, since it uses less digits than its factorization.

442334421023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672106.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 442334421023 its reverse (320124433244), we get a palindrome (762458854267).

The spelling of 442334421023 in words is "four hundred forty-two billion, three hundred thirty-four million, four hundred twenty-one thousand, twenty-three".