2256693 has 8 divisors (see below), whose sum is σ = 3112800. Its totient is φ = 1452528.

The previous prime is 2256689. The next prime is 2256697. The reversal of 2256693 is 3966522.

It is an interprime number because it is at equal distance from previous prime (2256689) and next prime (2256697).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2256693 - 2² = 2256689 is a prime.

2256693 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12883 + ... + 13056.

It is an arithmetic number, because the mean of its divisors is an integer number (389100).

2^2256693 is an apocalyptic number.

It is an amenable number.

2256693 is a deficient number, since it is larger than the sum of its proper divisors (856107).

2256693 is a wasteful number, since it uses less digits than its factorization.

2256693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25971.

The product of its digits is 19440, while the sum is 33.

The square root of 2256693 is about 1502.2293433428. The cubic root of 2256693 is about 131.1668716240.

The spelling of 2256693 in words is "two million, two hundred fifty-six thousand, six hundred ninety-three".