2288565 has 12 divisors (see below), whose sum is σ = 3966924. Its totient is φ = 1220544.

The previous prime is 2288563. The next prime is 2288581. The reversal of 2288565 is 5658822.

It can be written as a sum of positive squares in 2 ways, for example, as 400689 + 1887876 = 633^2 + 1374^2 .

It is not a de Polignac number, because 2288565 - 2¹ = 2288563 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25384 + ... + 25473.

It is an arithmetic number, because the mean of its divisors is an integer number (330577).

2^2288565 is an apocalyptic number.

It is an amenable number.

2288565 is a deficient number, since it is larger than the sum of its proper divisors (1678359).

2288565 is a wasteful number, since it uses less digits than its factorization.

2288565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50868 (or 50865 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 2288565 is about 1512.8003833950. The cubic root of 2288565 is about 131.7814911035.

The spelling of 2288565 in words is "two million, two hundred eighty-eight thousand, five hundred sixty-five".