268867256 has 16 divisors (see below), whose sum is σ = 576144240. Its totient is φ = 115228800.

The previous prime is 268867243. The next prime is 268867259. The reversal of 268867256 is 652768862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268867259) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2400545 + ... + 2400656.

It is an arithmetic number, because the mean of its divisors is an integer number (36009015).

Almost surely, 2^268867256 is an apocalyptic number.

It is an amenable number.

268867256 is an abundant number, since it is smaller than the sum of its proper divisors (307276984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268867256 is a wasteful number, since it uses less digits than its factorization.

268867256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801214 (or 4801210 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 268867256 is about 16397.1721952293. The cubic root of 268867256 is about 645.4252796936.

The spelling of 268867256 in words is "two hundred sixty-eight million, eight hundred sixty-seven thousand, two hundred fifty-six".