260904 has 32 divisors (see below), whose sum is σ = 745920. Its totient is φ = 74496.

The previous prime is 260893. The next prime is 260921. The reversal of 260904 is 409062.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

260904 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 609 + ... + 944.

It is an arithmetic number, because the mean of its divisors is an integer number (23310).

2²⁶⁰⁹⁰⁴ is an apocalyptic number.

260904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

260904 is an abundant number, since it is smaller than the sum of its proper divisors (485016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260904 is a wasteful number, since it uses less digits than its factorization.

260904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 260904 is about 510.7876271015. The cubic root of 260904 is about 63.8989290109.

Adding to 260904 its reverse (409062), we get a palindrome (669966).

It can be divided in two parts, 2 and 60904, that added together give a palindrome (60906).

The spelling of 260904 in words is "two hundred sixty thousand, nine hundred four".