268859281 has 4 divisors (see below), whose sum is σ = 270065152. Its totient is φ = 267653412.

The previous prime is 268859257. The next prime is 268859287. The reversal of 268859281 is 182958862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 268859281 - 2⁹ = 268858769 is a prime.

It is a super-2 number, since 2×268859281² = 144570625959673922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268859287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602601 + ... + 603046.

It is an arithmetic number, because the mean of its divisors is an integer number (67516288).

Almost surely, 2^268859281 is an apocalyptic number.

It is an amenable number.

268859281 is a deficient number, since it is larger than the sum of its proper divisors (1205871).

268859281 is a wasteful number, since it uses less digits than its factorization.

268859281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205870.

The product of its digits is 552960, while the sum is 49.

The square root of 268859281 is about 16396.9290112509. The cubic root of 268859281 is about 645.4188982080.

The spelling of 268859281 in words is "two hundred sixty-eight million, eight hundred fifty-nine thousand, two hundred eighty-one".