424544423 has 2 divisors, whose sum is σ = 424544424. Its totient is φ = 424544422.

The previous prime is 424544387. The next prime is 424544441. The reversal of 424544423 is 324445424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424544423 - 2¹⁸ = 424282279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424544423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424544443) 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, 212272211 + 212272212.

It is an arithmetic number, because the mean of its divisors is an integer number (212272212).

Almost surely, 2^424544423 is an apocalyptic number.

424544423 is a deficient number, since it is larger than the sum of its proper divisors (1).

424544423 is an equidigital number, since it uses as much as digits as its factorization.

424544423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 32.

The square root of 424544423 is about 20604.4758001751. The cubic root of 424544423 is about 751.5785555153.

Adding to 424544423 its reverse (324445424), we get a palindrome (748989847).

The spelling of 424544423 in words is "four hundred twenty-four million, five hundred forty-four thousand, four hundred twenty-three".