1224442423 has 4 divisors (see below), whose sum is σ = 1230595600. Its totient is φ = 1218289248.

The previous prime is 1224442397. The next prime is 1224442469. The reversal of 1224442423 is 3242444221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1224442423 - 2²⁵ = 1190887991 is a prime.

It is a super-2 number, since 2×1224442423² = 2998518494484221858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1224442391 and 1224442400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224442223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3076290 + ... + 3076687.

It is an arithmetic number, because the mean of its divisors is an integer number (307648900).

Almost surely, 2^1224442423 is an apocalyptic number.

1224442423 is a deficient number, since it is larger than the sum of its proper divisors (6153177).

1224442423 is an equidigital number, since it uses as much as digits as its factorization.

1224442423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153176.

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

The square root of 1224442423 is about 34992.0337076884. The cubic root of 1224442423 is about 1069.8251156809.

Adding to 1224442423 its reverse (3242444221), we get a palindrome (4466886644).

The spelling of 1224442423 in words is "one billion, two hundred twenty-four million, four hundred forty-two thousand, four hundred twenty-three".