1296318296 has 64 divisors (see below), whose sum is σ = 3001588800. Its totient is φ = 511100928.

The previous prime is 1296318281. The next prime is 1296318307. The reversal of 1296318296 is 6928136921.

It is a super-2 number, since 2×1296318296² = 3360882249088687232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1296318296.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225020 + ... + 230708.

It is an arithmetic number, because the mean of its divisors is an integer number (46899825).

Almost surely, 2^1296318296 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 1296318296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500794400).

1296318296 is an abundant number, since it is smaller than the sum of its proper divisors (1705270504).

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

1296318296 is a wasteful number, since it uses less digits than its factorization.

1296318296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6028 (or 6024 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 1296318296 is about 36004.4205063767. The cubic root of 1296318296 is about 1090.3616049080.

The spelling of 1296318296 in words is "one billion, two hundred ninety-six million, three hundred eighteen thousand, two hundred ninety-six".