4256042 has 24 divisors (see below), whose sum is σ = 7504164. Its totient is φ = 1804992.

The previous prime is 4256029. The next prime is 4256051. The reversal of 4256042 is 2406524.

It can be written as a sum of positive squares in 2 ways, for example, as 4036081 + 219961 = 2009^2 + 469^2 .

It is a super-2 number, since 2×4256042² = 36227787011528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4255999 and 4256017.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13268 + ... + 13584.

Almost surely, 2^4256042 is an apocalyptic number.

4256042 is a deficient number, since it is larger than the sum of its proper divisors (3248122).

4256042 is a wasteful number, since it uses less digits than its factorization.

4256042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 463 counting only the distinct ones).

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

The square root of 4256042 is about 2063.0176926047. The cubic root of 4256042 is about 162.0573134606.

The spelling of 4256042 in words is "four million, two hundred fifty-six thousand, forty-two".