223290 has 32 divisors (see below), whose sum is σ = 596160. Its totient is φ = 59472.

The previous prime is 223283. The next prime is 223291. The reversal of 223290 is 92322.

223290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223290³ = 33398662551867000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (223291) 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, 144 + ... + 683.

It is an arithmetic number, because the mean of its divisors is an integer number (18630).

2²²³²⁹⁰ is an apocalyptic number.

223290 is an abundant number, since it is smaller than the sum of its proper divisors (372870).

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

223290 is a wasteful number, since it uses less digits than its factorization.

223290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 223290 is about 472.5357129361. The cubic root of 223290 is about 60.6675455065.

The spelling of 223290 in words is "two hundred twenty-three thousand, two hundred ninety".