442343911 has 2 divisors, whose sum is σ = 442343912. Its totient is φ = 442343910.

The previous prime is 442343897. The next prime is 442343971. The reversal of 442343911 is 119343244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442343911 - 2²³ = 433955303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442343971) 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, 221171955 + 221171956.

It is an arithmetic number, because the mean of its divisors is an integer number (221171956).

Almost surely, 2^442343911 is an apocalyptic number.

442343911 is a deficient number, since it is larger than the sum of its proper divisors (1).

442343911 is an equidigital number, since it uses as much as digits as its factorization.

442343911 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 442343911 is about 21031.9735403029. The cubic root of 442343911 is about 761.9386740716.

The spelling of 442343911 in words is "four hundred forty-two million, three hundred forty-three thousand, nine hundred eleven".