2256918 has 8 divisors (see below), whose sum is σ = 4513848. Its totient is φ = 752304.

The previous prime is 2256913. The next prime is 2256923. The reversal of 2256918 is 8196522.

It is an interprime number because it is at equal distance from previous prime (2256913) and next prime (2256923).

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

2256918 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188071 + ... + 188082.

It is an arithmetic number, because the mean of its divisors is an integer number (564231).

2^2256918 is an apocalyptic number.

2256918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2256918 is a wasteful number, since it uses less digits than its factorization.

2256918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376158.

The product of its digits is 8640, while the sum is 33.

The square root of 2256918 is about 1502.3042301744. The cubic root of 2256918 is about 131.1712307409.

The spelling of 2256918 in words is "two million, two hundred fifty-six thousand, nine hundred eighteen".