442122604231 has 32 divisors (see below), whose sum is σ = 580299148800. Its totient is φ = 326339642880.

The previous prime is 442122604211. The next prime is 442122604241. The reversal of 442122604231 is 132406221244.

It is a cyclic number.

It is not a de Polignac number, because 442122604231 - 2⁷ = 442122604103 is a prime.

It is a super-2 number, since 2×442122604231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442122604193 and 442122604202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442122604211) 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, 18727771 + ... + 18751363.

It is an arithmetic number, because the mean of its divisors is an integer number (18134348400).

Almost surely, 2^442122604231 is an apocalyptic number.

442122604231 is a deficient number, since it is larger than the sum of its proper divisors (138176544569).

442122604231 is a wasteful number, since it uses less digits than its factorization.

442122604231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36439.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 442122604231 its reverse (132406221244), we get a palindrome (574528825475).

The spelling of 442122604231 in words is "four hundred forty-two billion, one hundred twenty-two million, six hundred four thousand, two hundred thirty-one".