260940 has 24 divisors (see below), whose sum is σ = 730800. Its totient is φ = 69568.

The previous prime is 260921. The next prime is 260941. The reversal of 260940 is 49062.

260940 = 21² + 22² + ... + 92².

It is not an unprimeable number, because it can be changed into a prime (260941) by changing a digit.

260940 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 7 ways as a sum of consecutive naturals, for example, 2115 + ... + 2234.

It is an arithmetic number, because the mean of its divisors is an integer number (30450).

2²⁶⁰⁹⁴⁰ is an apocalyptic number.

260940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260940 is an abundant number, since it is smaller than the sum of its proper divisors (469860).

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

260940 is a wasteful number, since it uses less digits than its factorization.

260940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361 (or 4359 counting only the distinct ones).

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

The square root of 260940 is about 510.8228655806. The cubic root of 260940 is about 63.9018678386.

The spelling of 260940 in words is "two hundred sixty thousand, nine hundred forty".