2880856 has 32 divisors (see below), whose sum is σ = 6206400. Its totient is φ = 1239840.

The previous prime is 2880851. The next prime is 2880859. The reversal of 2880856 is 6580882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2880851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811 + ... + 2533.

It is an arithmetic number, because the mean of its divisors is an integer number (193950).

2^2880856 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 2880856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3103200).

2880856 is an abundant number, since it is smaller than the sum of its proper divisors (3325544).

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

2880856 is a wasteful number, since it uses less digits than its factorization.

2880856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759 (or 1755 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2880856 is about 1697.3084575292. The cubic root of 2880856 is about 142.2898266197.

The spelling of 2880856 in words is "two million, eight hundred eighty thousand, eight hundred fifty-six".