4256885 has 16 divisors (see below), whose sum is σ = 5504112. Its totient is φ = 3148800.

The previous prime is 4256839. The next prime is 4256897. The reversal of 4256885 is 5886524.

It can be written as a sum of positive squares in 8 ways, for example, as 481636 + 3775249 = 694^2 + 1943^2 .

It is not a de Polignac number, because 4256885 - 2¹⁴ = 4240501 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4775 + ... + 5595.

It is an arithmetic number, because the mean of its divisors is an integer number (344007).

Almost surely, 2^4256885 is an apocalyptic number.

It is an amenable number.

4256885 is a deficient number, since it is larger than the sum of its proper divisors (1247227).

4256885 is a wasteful number, since it uses less digits than its factorization.

4256885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904.

The product of its digits is 76800, while the sum is 38.

The square root of 4256885 is about 2063.2219948420. The cubic root of 4256885 is about 162.0680123914.

The spelling of 4256885 in words is "four million, two hundred fifty-six thousand, eight hundred eighty-five".