268885 has 4 divisors (see below), whose sum is σ = 322668. Its totient is φ = 215104.

The previous prime is 268883. The next prime is 268897. The reversal of 268885 is 588862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588862 = 2 ⋅294431.

It can be written as a sum of positive squares in 2 ways, for example, as 40401 + 228484 = 201^2 + 478^2 .

It is a cyclic number.

It is not a de Polignac number, because 268885 - 2¹ = 268883 is a prime.

It is a super-4 number, since 4×268885⁴ (a number of 23 digits) contains 4444 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 (268883) 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, 26884 + ... + 26893.

It is an arithmetic number, because the mean of its divisors is an integer number (80667).

2²⁶⁸⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

268885 is a deficient number, since it is larger than the sum of its proper divisors (53783).

268885 is an equidigital number, since it uses as much as digits as its factorization.

268885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53782.

The product of its digits is 30720, while the sum is 37.

The square root of 268885 is about 518.5412230479. The cubic root of 268885 is about 64.5439477746.

It can be divided in two parts, 26 and 8885, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 268885 in words is "two hundred sixty-eight thousand, eight hundred eighty-five".