290004 has 48 divisors (see below), whose sum is σ = 799680. Its totient is φ = 81120.

The previous prime is 289999. The next prime is 290011. The reversal of 290004 is 400092.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

290004 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 15 ways as a sum of consecutive naturals, for example, 22302 + ... + 22314.

It is an arithmetic number, because the mean of its divisors is an integer number (16660).

2²⁹⁰⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399840).

290004 is an abundant number, since it is smaller than the sum of its proper divisors (509676).

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

290004 is a wasteful number, since it uses less digits than its factorization.

290004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 290004 is about 538.5201946074. The cubic root of 290004 is about 66.1913638056.

Adding to 290004 its reverse (400092), we get a palindrome (690096).

The spelling of 290004 in words is "two hundred ninety thousand, four".