2560856 has 8 divisors (see below), whose sum is σ = 4801620. Its totient is φ = 1280424.

The previous prime is 2560849. The next prime is 2560871. The reversal of 2560856 is 6580652.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160046 + ... + 160061.

2^2560856 is an apocalyptic number.

It is an amenable number.

2560856 is a deficient number, since it is larger than the sum of its proper divisors (2240764).

2560856 is a wasteful number, since it uses less digits than its factorization.

2560856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320113 (or 320109 counting only the distinct ones).

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

The square root of 2560856 is about 1600.2674776424. The cubic root of 2560856 is about 136.8133213205.

The spelling of 2560856 in words is "two million, five hundred sixty thousand, eight hundred fifty-six".