2806880256 has 192 divisors, whose sum is σ = 8680089600. Its totient is φ = 894541824.

The previous prime is 2806880221. The next prime is 2806880299. The reversal of 2806880256 is 6520886082.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270705 + ... + 1272911.

It is an arithmetic number, because the mean of its divisors is an integer number (45208800).

Almost surely, 2^2806880256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2806880256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4340044800).

2806880256 is an abundant number, since it is smaller than the sum of its proper divisors (5873209344).

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

2806880256 is a wasteful number, since it uses less digits than its factorization.

2806880256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261 (or 2235 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 2806880256 is about 52979.9986409966. The cubic root of 2806880256 is about 1410.6132597152.

The spelling of 2806880256 in words is "two billion, eight hundred six million, eight hundred eighty thousand, two hundred fifty-six".