2256393 has 16 divisors (see below), whose sum is σ = 3217536. Its totient is φ = 1401600.

The previous prime is 2256389. The next prime is 2256413. The reversal of 2256393 is 3936522.

It is not a de Polignac number, because 2256393 - 2² = 2256389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2256393.

It is not an unprimeable number, because it can be changed into a prime (2256313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7555 + ... + 7847.

It is an arithmetic number, because the mean of its divisors is an integer number (201096).

2^2256393 is an apocalyptic number.

It is an amenable number.

2256393 is a deficient number, since it is larger than the sum of its proper divisors (961143).

2256393 is a wasteful number, since it uses less digits than its factorization.

2256393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464.

The product of its digits is 9720, while the sum is 30.

The square root of 2256393 is about 1502.1294884263. The cubic root of 2256393 is about 131.1610590175.

The spelling of 2256393 in words is "two million, two hundred fifty-six thousand, three hundred ninety-three".