2265856 has 36 divisors (see below), whose sum is σ = 4635792. Its totient is φ = 1104896.

The previous prime is 2265841. The next prime is 2265869. The reversal of 2265856 is 6585622.

It is a d-powerful number, because it can be written as 2³ + 2¹⁵ + 6 + 5 + 8 + 5⁹ + 6⁷ .

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, 13485 + ... + 13651.

It is an arithmetic number, because the mean of its divisors is an integer number (128772).

2^2265856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2265856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2317896).

2265856 is an abundant number, since it is smaller than the sum of its proper divisors (2369936).

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

2265856 is an equidigital number, since it uses as much as digits as its factorization.

2265856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 222 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2265856 is about 1505.2760544166. The cubic root of 2265856 is about 131.3441603987.

The spelling of 2265856 in words is "two million, two hundred sixty-five thousand, eight hundred fifty-six".