2256426 has 24 divisors (see below), whose sum is σ = 4964544. Its totient is φ = 740520.

The previous prime is 2256413. The next prime is 2256431. The reversal of 2256426 is 6246522.

It is a self number, because there is not a number n which added to its sum of digits gives 2256426.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271 + ... + 2141.

It is an arithmetic number, because the mean of its divisors is an integer number (206856).

2^2256426 is an apocalyptic number.

2256426 is an abundant number, since it is smaller than the sum of its proper divisors (2708118).

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

2256426 is a wasteful number, since it uses less digits than its factorization.

2256426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946 (or 1943 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 2256426 is about 1502.1404727921. The cubic root of 2256426 is about 131.1616984295.

It can be divided in two parts, 225 and 6426, that multiplied together give a triangular number (1445850 = T₁₇₀₀).

The spelling of 2256426 in words is "two million, two hundred fifty-six thousand, four hundred twenty-six".