260415 has 20 divisors (see below), whose sum is σ = 467544. Its totient is φ = 138672.

The previous prime is 260413. The next prime is 260417. The reversal of 260415 is 514062.

It is a happy number.

260415 is nontrivially palindromic in base 8.

It is an interprime number because it is at equal distance from previous prime (260413) and next prime (260417).

It is not a de Polignac number, because 260415 - 2¹ = 260413 is a prime.

260415 is a lucky number.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260411) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 84 + ... + 726.

2²⁶⁰⁴¹⁵ is an apocalyptic number.

260415 is a deficient number, since it is larger than the sum of its proper divisors (207129).

260415 is an equidigital number, since it uses as much as digits as its factorization.

260415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 260415 is about 510.3087300841. The cubic root of 260415 is about 63.8589831331.

Adding to 260415 its reverse (514062), we get a palindrome (774477).

It can be divided in two parts, 2604 and 15, that multiplied together give a triangular number (39060 = T₂₇₉).

The spelling of 260415 in words is "two hundred sixty thousand, four hundred fifteen".