1297686368 has 24 divisors (see below), whose sum is σ = 2787077160. Its totient is φ = 589857280.

The previous prime is 1297686329. The next prime is 1297686371. The reversal of 1297686368 is 8636867921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842953 + ... + 1843656.

It is an arithmetic number, because the mean of its divisors is an integer number (116128215).

Almost surely, 2^1297686368 is an apocalyptic number.

It is an amenable number.

1297686368 is an abundant number, since it is smaller than the sum of its proper divisors (1489390792).

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

1297686368 is a wasteful number, since it uses less digits than its factorization.

1297686368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686630 (or 3686622 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 56.

The square root of 1297686368 is about 36023.4141635687. The cubic root of 1297686368 is about 1090.7450417897.

The spelling of 1297686368 in words is "one billion, two hundred ninety-seven million, six hundred eighty-six thousand, three hundred sixty-eight".