2776256 has 28 divisors (see below), whose sum is σ = 6297168. Its totient is φ = 1189632.

The previous prime is 2776217. The next prime is 2776259. The reversal of 2776256 is 6526772.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (2776259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2651 + ... + 3546.

2^2776256 is an apocalyptic number.

It is an amenable number.

2776256 is an abundant number, since it is smaller than the sum of its proper divisors (3520912).

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

2776256 is an equidigital number, since it uses as much as digits as its factorization.

2776256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6216 (or 6206 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 2776256 is about 1666.2100707894. The cubic root of 2776256 is about 140.5464358527.

The spelling of 2776256 in words is "two million, seven hundred seventy-six thousand, two hundred fifty-six".