260240 has 20 divisors (see below), whose sum is σ = 605244. Its totient is φ = 104064.

The previous prime is 260231. The next prime is 260263. The reversal of 260240 is 42062.

260240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 200704 + 59536 = 448^2 + 244^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 8.

It is an unprimeable number.

260240 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1547 + ... + 1706.

2²⁶⁰²⁴⁰ is an apocalyptic number.

260240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260240 is an abundant number, since it is smaller than the sum of its proper divisors (345004).

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

260240 is a wasteful number, since it uses less digits than its factorization.

260240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266 (or 3260 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 260240 is about 510.1372364374. The cubic root of 260240 is about 63.8446754239.

The spelling of 260240 in words is "two hundred sixty thousand, two hundred forty".