2566004 has 24 divisors (see below), whose sum is σ = 5183808. Its totient is φ = 1088640.

The previous prime is 2566001. The next prime is 2566013. The reversal of 2566004 is 4006652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2759 + ... + 3569.

It is an arithmetic number, because the mean of its divisors is an integer number (215992).

2^2566004 is an apocalyptic number.

It is an amenable number.

2566004 is an abundant number, since it is smaller than the sum of its proper divisors (2617804).

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

2566004 is a wasteful number, since it uses less digits than its factorization.

2566004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2566004 is about 1601.8751511900. The cubic root of 2566004 is about 136.9049369823.

The spelling of 2566004 in words is "two million, five hundred sixty-six thousand, four".