442527223 has 2 divisors, whose sum is σ = 442527224. Its totient is φ = 442527222.

The previous prime is 442527149. The next prime is 442527229. The reversal of 442527223 is 322725244.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442527223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442527229) 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, 221263611 + 221263612.

It is an arithmetic number, because the mean of its divisors is an integer number (221263612).

Almost surely, 2^442527223 is an apocalyptic number.

442527223 is a deficient number, since it is larger than the sum of its proper divisors (1).

442527223 is an equidigital number, since it uses as much as digits as its factorization.

442527223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 31.

The square root of 442527223 is about 21036.3310251574. The cubic root of 442527223 is about 762.0439113536.

The spelling of 442527223 in words is "four hundred forty-two million, five hundred twenty-seven thousand, two hundred twenty-three".