2256826 has 24 divisors (see below), whose sum is σ = 4005504. Its totient is φ = 945360.

The previous prime is 2256823. The next prime is 2256827. The reversal of 2256826 is 6286522.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2256823) 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 11 ways as a sum of consecutive naturals, for example, 3415 + ... + 4021.

It is an arithmetic number, because the mean of its divisors is an integer number (166896).

2^2256826 is an apocalyptic number.

2256826 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2256826 is a deficient number, since it is larger than the sum of its proper divisors (1748678).

2256826 is a wasteful number, since it uses less digits than its factorization.

2256826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 633 counting only the distinct ones).

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

The square root of 2256826 is about 1502.2736102322. The cubic root of 2256826 is about 131.1694483815.

The spelling of 2256826 in words is "two million, two hundred fifty-six thousand, eight hundred twenty-six".