268439 has 2 divisors, whose sum is σ = 268440. Its totient is φ = 268438.

The previous prime is 268403. The next prime is 268459. The reversal of 268439 is 934862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268439 - 2¹² = 264343 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134219 + 134220.

It is an arithmetic number, because the mean of its divisors is an integer number (134220).

2²⁶⁸⁴³⁹ is an apocalyptic number.

268439 is a deficient number, since it is larger than the sum of its proper divisors (1).

268439 is an equidigital number, since it uses as much as digits as its factorization.

268439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 268439 is about 518.1109919699. The cubic root of 268439 is about 64.5082416406.

It can be divided in two parts, 268 and 439, that added together give a palindrome (707).

The spelling of 268439 in words is "two hundred sixty-eight thousand, four hundred thirty-nine".