2256356 has 6 divisors (see below), whose sum is σ = 3948630. Its totient is φ = 1128176.

The previous prime is 2256349. The next prime is 2256361. The reversal of 2256356 is 6536522.

It is a happy number.

2256356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 379456 = 1370^2 + 616^2 .

It is a super-2 number, since 2×2256356² = 10182284797472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282041 + ... + 282048.

It is an arithmetic number, because the mean of its divisors is an integer number (658105).

2^2256356 is an apocalyptic number.

It is an amenable number.

2256356 is a deficient number, since it is larger than the sum of its proper divisors (1692274).

2256356 is a wasteful number, since it uses less digits than its factorization.

2256356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564093 (or 564091 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 2256356 is about 1502.1171725268. The cubic root of 2256356 is about 131.1603420937.

The spelling of 2256356 in words is "two million, two hundred fifty-six thousand, three hundred fifty-six".