4256069 has 16 divisors (see below), whose sum is σ = 4762800. Its totient is φ = 3784704.

The previous prime is 4256051. The next prime is 4256089. The reversal of 4256069 is 9606524.

It can be written as a sum of positive squares in 8 ways, for example, as 4225 + 4251844 = 65^2 + 2062^2 .

It is a cyclic number.

It is not a de Polignac number, because 4256069 - 2¹⁶ = 4190533 is a prime.

It is a super-2 number, since 2×4256069² = 36228246665522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43829 + ... + 43925.

It is an arithmetic number, because the mean of its divisors is an integer number (297675).

Almost surely, 2^4256069 is an apocalyptic number.

It is an amenable number.

4256069 is a deficient number, since it is larger than the sum of its proper divisors (506731).

4256069 is a wasteful number, since it uses less digits than its factorization.

4256069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 4256069 is about 2063.0242364063. The cubic root of 4256069 is about 162.0576561529.

The spelling of 4256069 in words is "four million, two hundred fifty-six thousand, sixty-nine".