2580804 has 36 divisors (see below), whose sum is σ = 6909084. Its totient is φ = 809472.

The previous prime is 2580803. The next prime is 2580811. The reversal of 2580804 is 4080852.

2580804 is a `hidden beast` number, since 2 + 580 + 80 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2160900 + 419904 = 1470^2 + 648^2 .

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

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580803) 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, 1497 + ... + 2720.

It is an arithmetic number, because the mean of its divisors is an integer number (191919).

2^2580804 is an apocalyptic number.

It is an amenable number.

2580804 is an abundant number, since it is smaller than the sum of its proper divisors (4328280).

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

2580804 is a wasteful number, since it uses less digits than its factorization.

2580804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244 (or 4239 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 2580804 is about 1606.4880951940. The cubic root of 2580804 is about 137.1676424698.

The spelling of 2580804 in words is "two million, five hundred eighty thousand, eight hundred four".