260305 has 8 divisors (see below), whose sum is σ = 316800. Its totient is φ = 205296.

The previous prime is 260269. The next prime is 260317. The reversal of 260305 is 503062.

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 260305 - 2¹⁵ = 227537 is a prime.

It is a nialpdrome in base 8.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 66 + ... + 724.

It is an arithmetic number, because the mean of its divisors is an integer number (39600).

2²⁶⁰³⁰⁵ is an apocalyptic number.

It is an amenable number.

260305 is a deficient number, since it is larger than the sum of its proper divisors (56495).

260305 is an equidigital number, since it uses as much as digits as its factorization.

260305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 260305 is about 510.2009408067. The cubic root of 260305 is about 63.8499904644.

Adding to 260305 its reverse (503062), we get a palindrome (763367).

It can be divided in two parts, 260 and 305, that added together give a palindrome (565).

The spelling of 260305 in words is "two hundred sixty thousand, three hundred five".