4256842 has 8 divisors (see below), whose sum is σ = 6394500. Its totient is φ = 2125344.

The previous prime is 4256839. The next prime is 4256897. The reversal of 4256842 is 2486524.

It can be written as a sum of positive squares in 2 ways, for example, as 2954961 + 1301881 = 1719^2 + 1141^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084 + ... + 3112.

Almost surely, 2^4256842 is an apocalyptic number.

4256842 is a deficient number, since it is larger than the sum of its proper divisors (2137658).

4256842 is a wasteful number, since it uses less digits than its factorization.

4256842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080.

The product of its digits is 15360, while the sum is 31.

The square root of 4256842 is about 2063.2115742211. The cubic root of 4256842 is about 162.0674666913.

The spelling of 4256842 in words is "four million, two hundred fifty-six thousand, eight hundred forty-two".