1224244423 has 4 divisors (see below), whose sum is σ = 1288678360. Its totient is φ = 1159810488.

The previous prime is 1224244393. The next prime is 1224244433. The reversal of 1224244423 is 3244424221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3244424221 = 11579 ⋅280199.

It is a cyclic number.

It is not a de Polignac number, because 1224244423 - 2¹⁷ = 1224113351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1224244391 and 1224244400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224244433) 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 in 3 ways as a sum of consecutive naturals, for example, 32216940 + ... + 32216977.

It is an arithmetic number, because the mean of its divisors is an integer number (322169590).

Almost surely, 2^1224244423 is an apocalyptic number.

1224244423 is a deficient number, since it is larger than the sum of its proper divisors (64433937).

1224244423 is an equidigital number, since it uses as much as digits as its factorization.

1224244423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64433936.

The product of its digits is 12288, while the sum is 28.

The square root of 1224244423 is about 34989.2043779221. The cubic root of 1224244423 is about 1069.7674467676.

Adding to 1224244423 its reverse (3244424221), we get a palindrome (4468668644).

It can be divided in two parts, 12242 and 44423, that added together give a palindrome (56665).

The spelling of 1224244423 in words is "one billion, two hundred twenty-four million, two hundred forty-four thousand, four hundred twenty-three".