260403 has 16 divisors (see below), whose sum is σ = 408576. Its totient is φ = 145440.

The previous prime is 260399. The next prime is 260411. The reversal of 260403 is 304062.

It is not a de Polignac number, because 260403 - 2² = 260399 is a prime.

260403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (260413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126 + ... + 732.

It is an arithmetic number, because the mean of its divisors is an integer number (25536).

2²⁶⁰⁴⁰³ is an apocalyptic number.

260403 is a deficient number, since it is larger than the sum of its proper divisors (148173).

260403 is a wasteful number, since it uses less digits than its factorization.

260403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 260403 is about 510.2969723602. The cubic root of 260403 is about 63.8580022377.

Adding to 260403 its reverse (304062), we get a palindrome (564465).

The spelling of 260403 in words is "two hundred sixty thousand, four hundred three".