1296277368 has 32 divisors (see below), whose sum is σ = 3247938000. Its totient is φ = 431126528.

The previous prime is 1296277349. The next prime is 1296277379. The reversal of 1296277368 is 8637726921.

It is a self number, because there is not a number n which added to its sum of digits gives 1296277368.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49371 + ... + 70922.

Almost surely, 2^1296277368 is an apocalyptic number.

It is an amenable number.

1296277368 is an abundant number, since it is smaller than the sum of its proper divisors (1951660632).

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

1296277368 is a wasteful number, since it uses less digits than its factorization.

1296277368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120751 (or 120747 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The square root of 1296277368 is about 36003.8521272377. The cubic root of 1296277368 is about 1090.3501296426.

The spelling of 1296277368 in words is "one billion, two hundred ninety-six million, two hundred seventy-seven thousand, three hundred sixty-eight".