2289856 has 28 divisors (see below), whose sum is σ = 4671568. Its totient is φ = 1112832.

The previous prime is 2289841. The next prime is 2289863. The reversal of 2289856 is 6589822.

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, 1885 + ... + 2851.

2^2289856 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 2289856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2335784).

2289856 is an abundant number, since it is smaller than the sum of its proper divisors (2381712).

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

2289856 is an equidigital number, since it uses as much as digits as its factorization.

2289856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016 (or 1006 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 2289856 is about 1513.2270153549. The cubic root of 2289856 is about 131.8062661517.

The spelling of 2289856 in words is "two million, two hundred eighty-nine thousand, eight hundred fifty-six".