2256574 has 4 divisors (see below), whose sum is σ = 3384864. Its totient is φ = 1128286.

The previous prime is 2256571. The next prime is 2256601. The reversal of 2256574 is 4756522.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564142 + ... + 564145.

It is an arithmetic number, because the mean of its divisors is an integer number (846216).

2^2256574 is an apocalyptic number.

2256574 is a deficient number, since it is larger than the sum of its proper divisors (1128290).

2256574 is a wasteful number, since it uses less digits than its factorization.

2256574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128289.

The product of its digits is 16800, while the sum is 31.

The square root of 2256574 is about 1502.1897350202. The cubic root of 2256574 is about 131.1645660184.

The spelling of 2256574 in words is "two million, two hundred fifty-six thousand, five hundred seventy-four".