442439311 has 2 divisors, whose sum is σ = 442439312. Its totient is φ = 442439310.

The previous prime is 442439299. The next prime is 442439383. The reversal of 442439311 is 113934244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442439311 - 2²³ = 434050703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442439911) 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, 221219655 + 221219656.

It is an arithmetic number, because the mean of its divisors is an integer number (221219656).

Almost surely, 2^442439311 is an apocalyptic number.

442439311 is a deficient number, since it is larger than the sum of its proper divisors (1).

442439311 is an equidigital number, since it uses as much as digits as its factorization.

442439311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 442439311 is about 21034.2413934993. The cubic root of 442439311 is about 761.9934457268.

The spelling of 442439311 in words is "four hundred forty-two million, four hundred thirty-nine thousand, three hundred eleven".