268489 has 8 divisors (see below), whose sum is σ = 304640. Its totient is φ = 234576.

The previous prime is 268487. The next prime is 268493. The reversal of 268489 is 984862.

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

It is a cyclic number.

It is not a de Polignac number, because 268489 - 2¹ = 268487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297 + ... + 790.

It is an arithmetic number, because the mean of its divisors is an integer number (38080).

2²⁶⁸⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

268489 is a deficient number, since it is larger than the sum of its proper divisors (36151).

268489 is a wasteful number, since it uses less digits than its factorization.

268489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119.

The product of its digits is 27648, while the sum is 37.

The square root of 268489 is about 518.1592419324. The cubic root of 268489 is about 64.5122465379.

It can be divided in two parts, 268 and 489, that added together give a palindrome (757).

The spelling of 268489 in words is "two hundred sixty-eight thousand, four hundred eighty-nine".