2864256 has 32 divisors (see below), whose sum is σ = 7609200. Its totient is φ = 954624.

The previous prime is 2864249. The next prime is 2864261. The reversal of 2864256 is 6524682.

It is a tau number, because it is divible by the number of its divisors (32).

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, 3346 + ... + 4113.

2^2864256 is an apocalyptic number.

It is an amenable number.

2864256 is an abundant number, since it is smaller than the sum of its proper divisors (4744944).

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

2864256 is an equidigital number, since it uses as much as digits as its factorization.

2864256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7476 (or 7464 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 2864256 is about 1692.4112975279. The cubic root of 2864256 is about 142.0160003130.

The spelling of 2864256 in words is "two million, eight hundred sixty-four thousand, two hundred fifty-six".