1316287264 has 96 divisors (see below), whose sum is σ = 2773854720. Its totient is φ = 613788672.

The previous prime is 1316287261. The next prime is 1316287279. The reversal of 1316287264 is 4627826131.

It is a super-2 number, since 2×1316287264² = 3465224322737211392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1316287261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4492302 + ... + 4492594.

It is an arithmetic number, because the mean of its divisors is an integer number (28894320).

Almost surely, 2^1316287264 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 1316287264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1386927360).

1316287264 is an abundant number, since it is smaller than the sum of its proper divisors (1457567456).

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

1316287264 is a wasteful number, since it uses less digits than its factorization.

1316287264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 474 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 1316287264 is about 36280.6734226365. The cubic root of 1316287264 is about 1095.9318781252.

The spelling of 1316287264 in words is "one billion, three hundred sixteen million, two hundred eighty-seven thousand, two hundred sixty-four".