2566244 has 12 divisors (see below), whose sum is σ = 4508784. Its totient is φ = 1278024.

The previous prime is 2566241. The next prime is 2566253. The reversal of 2566244 is 4426652.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2566241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2 + ... + 2265.

It is an arithmetic number, because the mean of its divisors is an integer number (375732).

2^2566244 is an apocalyptic number.

It is an amenable number.

2566244 is a deficient number, since it is larger than the sum of its proper divisors (1942540).

2566244 is a wasteful number, since it uses less digits than its factorization.

2566244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554 (or 2552 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 2566244 is about 1601.9500616436. The cubic root of 2566244 is about 136.9092051181.

The spelling of 2566244 in words is "two million, five hundred sixty-six thousand, two hundred forty-four".