229290 has 16 divisors (see below), whose sum is σ = 550368. Its totient is φ = 61136.

The previous prime is 229283. The next prime is 229309. The reversal of 229290 is 92922.

It is a self number, because there is not a number n which added to its sum of digits gives 229290.

It is an unprimeable number.

229290 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3792 + ... + 3851.

It is an arithmetic number, because the mean of its divisors is an integer number (34398).

2²²⁹²⁹⁰ is an apocalyptic number.

229290 is an abundant number, since it is smaller than the sum of its proper divisors (321078).

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

229290 is a wasteful number, since it uses less digits than its factorization.

229290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7653.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 229290 is about 478.8423540164. The cubic root of 229290 is about 61.2061465910.

It can be divided in two parts, 2 and 29290, that added together give a palindrome (29292).

The spelling of 229290 in words is "two hundred twenty-nine thousand, two hundred ninety".