2256912 has 60 divisors (see below), whose sum is σ = 7221760. Its totient is φ = 644544.

The previous prime is 2256911. The next prime is 2256913. The reversal of 2256912 is 2196522.

It is an interprime number because it is at equal distance from previous prime (2256911) and next prime (2256913).

It is an Ulam 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 11 ways as a sum of consecutive naturals, for example, 112 + ... + 2127.

2^2256912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2256912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3610880).

2256912 is an abundant number, since it is smaller than the sum of its proper divisors (4964848).

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

2256912 is a wasteful number, since it uses less digits than its factorization.

2256912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260 (or 2251 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 2256912 is about 1502.3022332407. The cubic root of 2256912 is about 131.1711145015.

The spelling of 2256912 in words is "two million, two hundred fifty-six thousand, nine hundred twelve".