2686256 has 10 divisors (see below), whose sum is σ = 5204652. Its totient is φ = 1343120.

The previous prime is 2686223. The next prime is 2686259. The reversal of 2686256 is 6526862.

2686256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2686259) by changing a digit.

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, 83930 + ... + 83961.

2^2686256 is an apocalyptic number.

It is an amenable number.

2686256 is a deficient number, since it is larger than the sum of its proper divisors (2518396).

2686256 is a wasteful number, since it uses less digits than its factorization.

2686256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167899 (or 167893 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 2686256 is about 1638.9801707159. The cubic root of 2686256 is about 139.0109889006.

Subtracting 2686256 from its reverse (6526862), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2686256 in words is "two million, six hundred eighty-six thousand, two hundred fifty-six".