442332422023 has 4 divisors (see below), whose sum is σ = 448562456208. Its totient is φ = 436102387840.

The previous prime is 442332421997. The next prime is 442332422033. The reversal of 442332422023 is 320224233244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442332422023 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442332422033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3115016986 + ... + 3115017127.

It is an arithmetic number, because the mean of its divisors is an integer number (112140614052).

Almost surely, 2^442332422023 is an apocalyptic number.

442332422023 is a deficient number, since it is larger than the sum of its proper divisors (6230034185).

442332422023 is an equidigital number, since it uses as much as digits as its factorization.

442332422023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6230034184.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 442332422023 its reverse (320224233244), we get a palindrome (762556655267).

The spelling of 442332422023 in words is "four hundred forty-two billion, three hundred thirty-two million, four hundred twenty-two thousand, twenty-three".