2688266 has 16 divisors (see below), whose sum is σ = 4696704. Its totient is φ = 1130064.

The previous prime is 2688239. The next prime is 2688299. The reversal of 2688266 is 6628862.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070 + ... + 2553.

It is an arithmetic number, because the mean of its divisors is an integer number (293544).

2^2688266 is an apocalyptic number.

2688266 is a deficient number, since it is larger than the sum of its proper divisors (2008438).

2688266 is a wasteful number, since it uses less digits than its factorization.

2688266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685.

The product of its digits is 55296, while the sum is 38.

The square root of 2688266 is about 1639.5932422403. The cubic root of 2688266 is about 139.0456520682.

The spelling of 2688266 in words is "two million, six hundred eighty-eight thousand, two hundred sixty-six".