1244430313 has 12 divisors (see below), whose sum is σ = 1449081360. Its totient is φ = 1065565032.

The previous prime is 1244430293. The next prime is 1244430323. The reversal of 1244430313 is 3130344421.

It is a de Polignac number, because none of the positive numbers 2^k-1244430313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244430323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37470 + ... + 62392.

It is an arithmetic number, because the mean of its divisors is an integer number (120756780).

Almost surely, 2^1244430313 is an apocalyptic number.

It is an amenable number.

1244430313 is a deficient number, since it is larger than the sum of its proper divisors (204651047).

1244430313 is a wasteful number, since it uses less digits than its factorization.

1244430313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25956 (or 25949 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1244430313 is about 35276.4838525610. The cubic root of 1244430313 is about 1075.6150258919.

Adding to 1244430313 its reverse (3130344421), we get a palindrome (4374774734).

The spelling of 1244430313 in words is "one billion, two hundred forty-four million, four hundred thirty thousand, three hundred thirteen".