1296868 has 6 divisors (see below), whose sum is σ = 2269526. Its totient is φ = 648432.

The previous prime is 1296839. The next prime is 1296877. The reversal of 1296868 is 8686921.

It can be written as a sum of positive squares in only one way, i.e., 831744 + 465124 = 912^2 + 682^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1296868.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162105 + ... + 162112.

2^1296868 is an apocalyptic number.

It is an amenable number.

1296868 is a deficient number, since it is larger than the sum of its proper divisors (972658).

1296868 is a wasteful number, since it uses less digits than its factorization.

1296868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324221 (or 324219 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 1296868 is about 1138.8011239896. The cubic root of 1296868 is about 109.0515705804.

The spelling of 1296868 in words is "one million, two hundred ninety-six thousand, eight hundred sixty-eight".