2566044 has 36 divisors (see below), whose sum is σ = 6986616. Its totient is φ = 789408.

The previous prime is 2566027. The next prime is 2566049. The reversal of 2566044 is 4406652.

It is a happy number.

2566044 is a `hidden beast` number, since 2 + 56 + 604 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 2565999 and 2566017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2274 + ... + 3209.

2^2566044 is an apocalyptic number.

It is an amenable number.

2566044 is an abundant number, since it is smaller than the sum of its proper divisors (4420572).

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

2566044 is a wasteful number, since it uses less digits than its factorization.

2566044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506 (or 5501 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2566044 is about 1601.8876365089. The cubic root of 2566044 is about 136.9056483567.

The spelling of 2566044 in words is "two million, five hundred sixty-six thousand, forty-four".