2256442 has 8 divisors (see below), whose sum is σ = 3397716. Its totient is φ = 1123872.

The previous prime is 2256437. The next prime is 2256467. The reversal of 2256442 is 2446522.

2256442 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 2 ways, for example, as 1907161 + 349281 = 1381^2 + 591^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 1483 + ... + 2590.

2^2256442 is an apocalyptic number.

2256442 is a deficient number, since it is larger than the sum of its proper divisors (1141274).

2256442 is a wasteful number, since it uses less digits than its factorization.

2256442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352.

The product of its digits is 3840, while the sum is 25.

The square root of 2256442 is about 1502.1457985162. The cubic root of 2256442 is about 131.1620084451.

The spelling of 2256442 in words is "two million, two hundred fifty-six thousand, four hundred forty-two".