260641 has 4 divisors (see below), whose sum is σ = 264384. Its totient is φ = 256900.

The previous prime is 260629. The next prime is 260647. The reversal of 260641 is 146062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 260641 - 2⁵ = 260609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1765 + ... + 1906.

It is an arithmetic number, because the mean of its divisors is an integer number (66096).

2²⁶⁰⁶⁴¹ is an apocalyptic number.

It is an amenable number.

260641 is a deficient number, since it is larger than the sum of its proper divisors (3743).

260641 is an equidigital number, since it uses as much as digits as its factorization.

260641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 260641 is about 510.5301166435. The cubic root of 260641 is about 63.8774510365.

The spelling of 260641 in words is "two hundred sixty thousand, six hundred forty-one".