442122319 has 2 divisors, whose sum is σ = 442122320. Its totient is φ = 442122318.

The previous prime is 442122301. The next prime is 442122323. The reversal of 442122319 is 913221244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442122319 - 2¹¹ = 442120271 is a prime.

It is a super-2 number, since 2×442122319² = 390944289915875522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442122379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221061159 + 221061160.

It is an arithmetic number, because the mean of its divisors is an integer number (221061160).

Almost surely, 2^442122319 is an apocalyptic number.

442122319 is a deficient number, since it is larger than the sum of its proper divisors (1).

442122319 is an equidigital number, since it uses as much as digits as its factorization.

442122319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 442122319 is about 21026.7049011489. The cubic root of 442122319 is about 761.8114218653.

The spelling of 442122319 in words is "four hundred forty-two million, one hundred twenty-two thousand, three hundred nineteen".