260816 has 10 divisors (see below), whose sum is σ = 505362. Its totient is φ = 130400.

The previous prime is 260809. The next prime is 260849. The reversal of 260816 is 618062.

It can be written as a sum of positive squares in only one way, i.e., 250000 + 10816 = 500^2 + 104^2 .

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 260791 and 260800.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 260816.

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 as a sum of consecutive naturals, namely, 8135 + ... + 8166.

2²⁶⁰⁸¹⁶ is an apocalyptic number.

It is an amenable number.

260816 is a deficient number, since it is larger than the sum of its proper divisors (244546).

260816 is a wasteful number, since it uses less digits than its factorization.

260816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16309 (or 16303 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 260816 is about 510.7014783609. The cubic root of 260816 is about 63.8917440718.

Adding to 260816 its reverse (618062), we get a palindrome (878878).

The spelling of 260816 in words is "two hundred sixty thousand, eight hundred sixteen".