2266656 has 48 divisors (see below), whose sum is σ = 6801984. Its totient is φ = 647424.

The previous prime is 2266639. The next prime is 2266679. The reversal of 2266656 is 6566622.

It is a tau number, because it is divible by the number of its divisors (48).

It is an Ulam number.

It is a congruent number.

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, 1015 + ... + 2358.

It is an arithmetic number, because the mean of its divisors is an integer number (141708).

2^2266656 is an apocalyptic number.

It is an amenable number.

2266656 is an abundant number, since it is smaller than the sum of its proper divisors (4535328).

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

2266656 is a wasteful number, since it uses less digits than its factorization.

2266656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393 (or 3385 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 2266656 is about 1505.5417629545. The cubic root of 2266656 is about 131.3596163625.

It can be divided in two parts, 22666 and 56, that added together give a palindrome (22722).

The spelling of 2266656 in words is "two million, two hundred sixty-six thousand, six hundred fifty-six".