442314331 has 2 divisors, whose sum is σ = 442314332. Its totient is φ = 442314330.

The previous prime is 442314329. The next prime is 442314359. The reversal of 442314331 is 133413244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442314331 - 2¹ = 442314329 is a prime.

It is a super-2 number, since 2×442314331² = 391283934815955122, which contains 22 as substring.

Together with 442314329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 442314296 and 442314305.

It is not a weakly prime, because it can be changed into another prime (442314361) 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, 221157165 + 221157166.

It is an arithmetic number, because the mean of its divisors is an integer number (221157166).

Almost surely, 2^442314331 is an apocalyptic number.

442314331 is a deficient number, since it is larger than the sum of its proper divisors (1).

442314331 is an equidigital number, since it uses as much as digits as its factorization.

442314331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 25.

The square root of 442314331 is about 21031.2703135117. The cubic root of 442314331 is about 761.9216898143.

Adding to 442314331 its reverse (133413244), we get a palindrome (575727575).

The spelling of 442314331 in words is "four hundred forty-two million, three hundred fourteen thousand, three hundred thirty-one".