260404 has 6 divisors (see below), whose sum is σ = 455714. Its totient is φ = 130200.

The previous prime is 260399. The next prime is 260411. The reversal of 260404 is 404062.

It can be written as a sum of positive squares in only one way, i.e., 250000 + 10404 = 500^2 + 102^2 .

It is an Ulam number.

It is a congruent number.

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, 32547 + ... + 32554.

2²⁶⁰⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

260404 is a deficient number, since it is larger than the sum of its proper divisors (195310).

260404 is a wasteful number, since it uses less digits than its factorization.

260404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65105 (or 65103 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 260404 is about 510.2979521809. The cubic root of 260404 is about 63.8580839802.

Adding to 260404 its reverse (404062), we get a palindrome (664466).

It can be divided in two parts, 2 and 60404, that added together give a palindrome (60406).

The spelling of 260404 in words is "two hundred sixty thousand, four hundred four".