2256939 has 12 divisors (see below), whose sum is σ = 3314272. Its totient is φ = 1479600.

The previous prime is 2256931. The next prime is 2256959. The reversal of 2256939 is 9396522.

It is not a de Polignac number, because 2256939 - 2³ = 2256931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1507 + ... + 2604.

2^2256939 is an apocalyptic number.

2256939 is a deficient number, since it is larger than the sum of its proper divisors (1057333).

2256939 is a wasteful number, since it uses less digits than its factorization.

2256939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178 (or 4175 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 2256939 is about 1502.3112194216. The cubic root of 2256939 is about 131.1716375770.

The spelling of 2256939 in words is "two million, two hundred fifty-six thousand, nine hundred thirty-nine".