442444831 has 2 divisors, whose sum is σ = 442444832. Its totient is φ = 442444830.

The previous prime is 442444829. The next prime is 442444867. The reversal of 442444831 is 138444244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442444831 - 2¹ = 442444829 is a prime.

It is a super-2 number, since 2×442444831² = 391514856957237122, which contains 22 as substring.

Together with 442444829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442444801) 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 as a sum of consecutive naturals, namely, 221222415 + 221222416.

It is an arithmetic number, because the mean of its divisors is an integer number (221222416).

Almost surely, 2^442444831 is an apocalyptic number.

442444831 is a deficient number, since it is larger than the sum of its proper divisors (1).

442444831 is an equidigital number, since it uses as much as digits as its factorization.

442444831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49152, while the sum is 34.

The square root of 442444831 is about 21034.3726077105. The cubic root of 442444831 is about 761.9966146634.

The spelling of 442444831 in words is "four hundred forty-two million, four hundred forty-four thousand, eight hundred thirty-one".