208290 has 32 divisors (see below), whose sum is σ = 513216. Its totient is φ = 54080.

The previous prime is 208283. The next prime is 208291. The reversal of 208290 is 92802.

208290 is nontrivially palindromic in base 9.

208290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (208291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1525 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (16038).

2²⁰⁸²⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256608).

208290 is an abundant number, since it is smaller than the sum of its proper divisors (304926).

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

208290 is a wasteful number, since it uses less digits than its factorization.

208290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 208290 is about 456.3879928307. The cubic root of 208290 is about 59.2774446020.

The spelling of 208290 in words is "two hundred eight thousand, two hundred ninety".