2865560 has 32 divisors (see below), whose sum is σ = 6544800. Its totient is φ = 1128960.

The previous prime is 2865559. The next prime is 2865581. The reversal of 2865560 is 655682.

It is a happy number.

It is a super-2 number, since 2×2865560² = 16422868227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2336 + ... + 3344.

It is an arithmetic number, because the mean of its divisors is an integer number (204525).

2^2865560 is an apocalyptic number.

2865560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2865560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3272400).

2865560 is an abundant number, since it is smaller than the sum of its proper divisors (3679240).

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

2865560 is a wasteful number, since it uses less digits than its factorization.

2865560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2865560 is about 1692.7965028319. The cubic root of 2865560 is about 142.0375487556.

The spelling of 2865560 in words is "two million, eight hundred sixty-five thousand, five hundred sixty".