1244424431 has 2 divisors, whose sum is σ = 1244424432. Its totient is φ = 1244424430.

The previous prime is 1244424427. The next prime is 1244424443. The reversal of 1244424431 is 1344244421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1244424431 - 2² = 1244424427 is a prime.

It is a super-2 number, since 2×1244424431² = 3097184328939347522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1244424394 and 1244424403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244424451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622212215 + 622212216.

It is an arithmetic number, because the mean of its divisors is an integer number (622212216).

Almost surely, 2^1244424431 is an apocalyptic number.

1244424431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244424431 is an equidigital number, since it uses as much as digits as its factorization.

1244424431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 29.

The square root of 1244424431 is about 35276.4004824755. The cubic root of 1244424431 is about 1075.6133312001.

Adding to 1244424431 its reverse (1344244421), we get a palindrome (2588668852).

The spelling of 1244424431 in words is "one billion, two hundred forty-four million, four hundred twenty-four thousand, four hundred thirty-one".