1312435344 has 160 divisors (see below), whose sum is σ = 3847753728. Its totient is φ = 381888000.

The previous prime is 1312435331. The next prime is 1312435367. The reversal of 1312435344 is 4435342131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2962387 + ... + 2962829.

Almost surely, 2^1312435344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312435344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923876864).

1312435344 is an abundant number, since it is smaller than the sum of its proper divisors (2535318384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312435344 is a wasteful number, since it uses less digits than its factorization.

1312435344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 671 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 1312435344 is about 36227.5495169077. The cubic root of 1312435344 is about 1094.8618061250.

Adding to 1312435344 its reverse (4435342131), we get a palindrome (5747777475).

The spelling of 1312435344 in words is "one billion, three hundred twelve million, four hundred thirty-five thousand, three hundred forty-four".