442233317 has 2 divisors, whose sum is σ = 442233318. Its totient is φ = 442233316.

The previous prime is 442233271. The next prime is 442233329. The reversal of 442233317 is 713332244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439573156 + 2660161 = 20966^2 + 1631^2 .

It is a cyclic number.

It is not a de Polignac number, because 442233317 - 2²⁸ = 173797861 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442233317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442233367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221116658 + 221116659.

It is an arithmetic number, because the mean of its divisors is an integer number (221116659).

Almost surely, 2^442233317 is an apocalyptic number.

It is an amenable number.

442233317 is a deficient number, since it is larger than the sum of its proper divisors (1).

442233317 is an equidigital number, since it uses as much as digits as its factorization.

442233317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 29.

The square root of 442233317 is about 21029.3441885381. The cubic root of 442233317 is about 761.8751692832.

The spelling of 442233317 in words is "four hundred forty-two million, two hundred thirty-three thousand, three hundred seventeen".