1312340244 has 24 divisors (see below), whose sum is σ = 3096535680. Its totient is φ = 432531264.

The previous prime is 1312340231. The next prime is 1312340273. The reversal of 1312340244 is 4420432131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613324 + ... + 615459.

It is an arithmetic number, because the mean of its divisors is an integer number (129022320).

Almost surely, 2^1312340244 is an apocalyptic number.

It is an amenable number.

1312340244 is an abundant number, since it is smaller than the sum of its proper divisors (1784195436).

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

1312340244 is a wasteful number, since it uses less digits than its factorization.

1312340244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228879 (or 1228877 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1312340244 is about 36226.2369561068. The cubic root of 1312340244 is about 1094.8353606641.

Adding to 1312340244 its reverse (4420432131), we get a palindrome (5732772375).

The spelling of 1312340244 in words is "one billion, three hundred twelve million, three hundred forty thousand, two hundred forty-four".