1368656 has 20 divisors (see below), whose sum is σ = 2678772. Its totient is φ = 677376.

The previous prime is 1368643. The next prime is 1368659. The reversal of 1368656 is 6568631.

It can be written as a sum of positive squares in 2 ways, for example, as 336400 + 1032256 = 580^2 + 1016^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430 + ... + 2186.

2^1368656 is an apocalyptic number.

1368656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1368656 is a deficient number, since it is larger than the sum of its proper divisors (1310116).

1368656 is a wasteful number, since it uses less digits than its factorization.

1368656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 872 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 1368656 is about 1169.8957218487. The cubic root of 1368656 is about 111.0277235083.

The spelling of 1368656 in words is "one million, three hundred sixty-eight thousand, six hundred fifty-six".