2256843228 has 24 divisors (see below), whose sum is σ = 5575730832. Its totient is φ = 708029184.

The previous prime is 2256843223. The next prime is 2256843257. The reversal of 2256843228 is 8223486522.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2256843228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256843223) 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, 5531275 + ... + 5531682.

It is an arithmetic number, because the mean of its divisors is an integer number (232322118).

Almost surely, 2^2256843228 is an apocalyptic number.

It is an amenable number.

2256843228 is an abundant number, since it is smaller than the sum of its proper divisors (3318887604).

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

2256843228 is a wasteful number, since it uses less digits than its factorization.

2256843228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11062981 (or 11062979 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The square root of 2256843228 is about 47506.2440948556. The cubic root of 2256843228 is about 1311.6978215132.

The spelling of 2256843228 in words is "two billion, two hundred fifty-six million, eight hundred forty-three thousand, two hundred twenty-eight".