2878256 has 20 divisors (see below), whose sum is σ = 5673000. Its totient is φ = 1414272.

The previous prime is 2878247. The next prime is 2878297. The reversal of 2878256 is 6528782.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581 + ... + 2468.

It is an arithmetic number, because the mean of its divisors is an integer number (283650).

2^2878256 is an apocalyptic number.

It is an amenable number.

2878256 is a deficient number, since it is larger than the sum of its proper divisors (2794744).

2878256 is a wasteful number, since it uses less digits than its factorization.

2878256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116 (or 3110 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 2878256 is about 1696.5423661082. The cubic root of 2878256 is about 142.2470077607.

The spelling of 2878256 in words is "two million, eight hundred seventy-eight thousand, two hundred fifty-six".