2628256 has 24 divisors (see below), whose sum is σ = 5400864. Its totient is φ = 1256640.

The previous prime is 2628229. The next prime is 2628277. The reversal of 2628256 is 6528262.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050 + ... + 2521.

It is an arithmetic number, because the mean of its divisors is an integer number (225036).

2^2628256 is an apocalyptic number.

It is an amenable number.

2628256 is an abundant number, since it is smaller than the sum of its proper divisors (2772608).

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

2628256 is a wasteful number, since it uses less digits than its factorization.

2628256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604 (or 3596 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 2628256 is about 1621.1896866191. The cubic root of 2628256 is about 138.0032205368.

It can be divided in two parts, 26 and 28256, that added together give a palindrome (28282).

The spelling of 2628256 in words is "two million, six hundred twenty-eight thousand, two hundred fifty-six".