1312244464 has 20 divisors (see below), whose sum is σ = 2543078800. Its totient is φ = 655966080.

The previous prime is 1312244447. The next prime is 1312244471. The reversal of 1312244464 is 4644422131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91237 + ... + 104635.

It is an arithmetic number, because the mean of its divisors is an integer number (127153940).

Almost surely, 2^1312244464 is an apocalyptic number.

It is an amenable number.

1312244464 is a deficient number, since it is larger than the sum of its proper divisors (1230834336).

1312244464 is a wasteful number, since it uses less digits than its factorization.

1312244464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19528 (or 19522 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 1312244464 is about 36224.9149619430. The cubic root of 1312244464 is about 1094.8087248171.

Adding to 1312244464 its reverse (4644422131), we get a palindrome (5956666595).

The spelling of 1312244464 in words is "one billion, three hundred twelve million, two hundred forty-four thousand, four hundred sixty-four".