256269 has 8 divisors (see below), whose sum is σ = 368032. Its totient is φ = 157680.

The previous prime is 256219. The next prime is 256279. The reversal of 256269 is 962652.

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

It is not a de Polignac number, because 256269 - 2⁹ = 255757 is a prime.

It is a super-2 number, since 2×256269² = 131347600722, which contains 22 as substring.

It is a Duffinian number.

256269 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3247 + ... + 3324.

It is an arithmetic number, because the mean of its divisors is an integer number (46004).

2²⁵⁶²⁶⁹ is an apocalyptic number.

It is an amenable number.

256269 is a deficient number, since it is larger than the sum of its proper divisors (111763).

256269 is a wasteful number, since it uses less digits than its factorization.

256269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6587.

The product of its digits is 6480, while the sum is 30.

The square root of 256269 is about 506.2301847974. The cubic root of 256269 is about 63.5182744436.

It can be divided in two parts, 256 and 269, that added together give a palindrome (525).

The spelling of 256269 in words is "two hundred fifty-six thousand, two hundred sixty-nine".