290260 has 24 divisors (see below), whose sum is σ = 637056. Its totient is φ = 110880.

The previous prime is 290249. The next prime is 290317. The reversal of 290260 is 62092.

It is an Ulam number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

290260 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, 145 + ... + 775.

It is an arithmetic number, because the mean of its divisors is an integer number (26544).

2²⁹⁰²⁶⁰ is an apocalyptic number.

290260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318528).

290260 is an abundant number, since it is smaller than the sum of its proper divisors (346796).

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

290260 is a wasteful number, since it uses less digits than its factorization.

290260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 290260 is about 538.7578305695. The cubic root of 290260 is about 66.2108348077.

The spelling of 290260 in words is "two hundred ninety thousand, two hundred sixty".