260490 has 32 divisors (see below), whose sum is σ = 659520. Its totient is φ = 65664.

The previous prime is 260489. The next prime is 260527. The reversal of 260490 is 94062.

260490 = T₁₅₆ + T₁₅₇ + ... + T₁₇₄.

260490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable 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, 342 + ... + 798.

It is an arithmetic number, because the mean of its divisors is an integer number (20610).

2²⁶⁰⁴⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329760).

260490 is an abundant number, since it is smaller than the sum of its proper divisors (399030).

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

260490 is a wasteful number, since it uses less digits than its factorization.

260490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

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

The square root of 260490 is about 510.3822097213. The cubic root of 260490 is about 63.8651130462.

The spelling of 260490 in words is "two hundred sixty thousand, four hundred ninety".