4042256 has 10 divisors (see below), whose sum is σ = 7831902. Its totient is φ = 2021120.

The previous prime is 4042253. The next prime is 4042271. The reversal of 4042256 is 6522404.

4042256 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., 2310400 + 1731856 = 1520^2 + 1316^2 .

It is not an unprimeable number, because it can be changed into a prime (4042253) by changing a digit.

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, 126305 + ... + 126336.

Almost surely, 2^4042256 is an apocalyptic number.

It is an amenable number.

4042256 is a deficient number, since it is larger than the sum of its proper divisors (3789646).

4042256 is a wasteful number, since it uses less digits than its factorization.

4042256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252649 (or 252643 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 4042256 is about 2010.5362468754. The cubic root of 4042256 is about 159.2971251481.

The spelling of 4042256 in words is "four million, forty-two thousand, two hundred fifty-six".