1312304776 has 16 divisors (see below), whose sum is σ = 2469931200. Its totient is φ = 653656464.

The previous prime is 1312304743. The next prime is 1312304797. The reversal of 1312304776 is 6774032131.

It is a super-2 number, since 2×1312304776² = 3444287650224820352, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 309756 + ... + 313963.

It is an arithmetic number, because the mean of its divisors is an integer number (154370700).

Almost surely, 2^1312304776 is an apocalyptic number.

It is an amenable number.

1312304776 is a deficient number, since it is larger than the sum of its proper divisors (1157626424).

1312304776 is a wasteful number, since it uses less digits than its factorization.

1312304776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623988 (or 623984 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 1312304776 is about 36225.7474181003. The cubic root of 1312304776 is about 1094.8254973758.

The spelling of 1312304776 in words is "one billion, three hundred twelve million, three hundred four thousand, seven hundred seventy-six".