2256808 has 8 divisors (see below), whose sum is σ = 4231530. Its totient is φ = 1128400.

The previous prime is 2256791. The next prime is 2256811. The reversal of 2256808 is 8086522.

2256808 is digitally balanced in base 2 and base 5, because in such bases 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., 2125764 + 131044 = 1458^2 + 362^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2256808.

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, 141043 + ... + 141058.

2^2256808 is an apocalyptic number.

It is an amenable number.

2256808 is a deficient number, since it is larger than the sum of its proper divisors (1974722).

2256808 is a wasteful number, since it uses less digits than its factorization.

2256808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282107 (or 282103 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2256808 is about 1502.2676193009. The cubic root of 2256808 is about 131.1690996533.

The spelling of 2256808 in words is "two million, two hundred fifty-six thousand, eight hundred eight".