260990 has 8 divisors (see below), whose sum is σ = 469800. Its totient is φ = 104392.

The previous prime is 260987. The next prime is 260999. The reversal of 260990 is 99062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×260990³ = 53332612344897000, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260999) 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, 13040 + ... + 13059.

It is an arithmetic number, because the mean of its divisors is an integer number (58725).

2²⁶⁰⁹⁹⁰ is an apocalyptic number.

260990 is a deficient number, since it is larger than the sum of its proper divisors (208810).

260990 is a wasteful number, since it uses less digits than its factorization.

260990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26106.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 260990 is about 510.8718038804. The cubic root of 260990 is about 63.9059490952.

The spelling of 260990 in words is "two hundred sixty thousand, nine hundred ninety".