442433423 has 2 divisors, whose sum is σ = 442433424. Its totient is φ = 442433422.

The previous prime is 442433401. The next prime is 442433441. The reversal of 442433423 is 324334244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442433423 - 2¹⁰ = 442432399 is a prime.

It is equal to p_23473082 and since 442433423 and 23473082 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442439423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221216711 + 221216712.

It is an arithmetic number, because the mean of its divisors is an integer number (221216712).

Almost surely, 2^442433423 is an apocalyptic number.

442433423 is a deficient number, since it is larger than the sum of its proper divisors (1).

442433423 is an equidigital number, since it uses as much as digits as its factorization.

442433423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 29.

The square root of 442433423 is about 21034.1014307719. The cubic root of 442433423 is about 761.9900654988.

Adding to 442433423 its reverse (324334244), we get a palindrome (766767667).

The spelling of 442433423 in words is "four hundred forty-two million, four hundred thirty-three thousand, four hundred twenty-three".