222489 has 12 divisors (see below), whose sum is σ = 327600. Its totient is φ = 145464.

The previous prime is 222461. The next prime is 222493. The reversal of 222489 is 984222.

222489 = 30² + 31² + ... + 88².

222489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222489 - 2⁷ = 222361 is a prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322 + ... + 740.

It is an arithmetic number, because the mean of its divisors is an integer number (27300).

2²²²⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

222489 is a deficient number, since it is larger than the sum of its proper divisors (105111).

222489 is a wasteful number, since it uses less digits than its factorization.

222489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 481 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 222489 is about 471.6873964820. The cubic root of 222489 is about 60.5949151045.

The spelling of 222489 in words is "two hundred twenty-two thousand, four hundred eighty-nine".