260280 has 64 divisors (see below), whose sum is σ = 871200. Its totient is φ = 69120.

The previous prime is 260269. The next prime is 260317. The reversal of 260280 is 82062.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

260280 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 15 ways as a sum of consecutive naturals, for example, 960 + ... + 1200.

2²⁶⁰²⁸⁰ is an apocalyptic number.

260280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435600).

260280 is an abundant number, since it is smaller than the sum of its proper divisors (610920).

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

260280 is a wasteful number, since it uses less digits than its factorization.

260280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 260280 is about 510.1764400676. The cubic root of 260280 is about 63.8479463227.

The spelling of 260280 in words is "two hundred sixty thousand, two hundred eighty".