2805580 has 24 divisors (see below), whose sum is σ = 5937120. Its totient is φ = 1113600.

The previous prime is 2805577. The next prime is 2805587. The reversal of 2805580 is 855082.

2805580 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2805580³ = 66250509958503336000, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2805587) 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, 2556 + ... + 3484.

It is an arithmetic number, because the mean of its divisors is an integer number (247380).

2^2805580 is an apocalyptic number.

2805580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2805580 is an abundant number, since it is smaller than the sum of its proper divisors (3131540).

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

2805580 is a wasteful number, since it uses less digits than its factorization.

2805580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 2805580 is about 1674.9865671103. The cubic root of 2805580 is about 141.0395409115.

The spelling of 2805580 in words is "two million, eight hundred five thousand, five hundred eighty".