442244423 has 2 divisors, whose sum is σ = 442244424. Its totient is φ = 442244422.

The previous prime is 442244393. The next prime is 442244431. The reversal of 442244423 is 324442244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442244423 - 2²⁶ = 375135559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442244123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221122211 + 221122212.

It is an arithmetic number, because the mean of its divisors is an integer number (221122212).

Almost surely, 2^442244423 is an apocalyptic number.

442244423 is a deficient number, since it is larger than the sum of its proper divisors (1).

442244423 is an equidigital number, since it uses as much as digits as its factorization.

442244423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24576, while the sum is 29.

The square root of 442244423 is about 21029.6082464700. The cubic root of 442244423 is about 761.8815469987.

Adding to 442244423 its reverse (324442244), we get a palindrome (766686667).

The spelling of 442244423 in words is "four hundred forty-two million, two hundred forty-four thousand, four hundred twenty-three".