222446 has 8 divisors (see below), whose sum is σ = 381360. Its totient is φ = 95328.

The previous prime is 222437. The next prime is 222461. The reversal of 222446 is 644222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7931 + ... + 7958.

It is an arithmetic number, because the mean of its divisors is an integer number (47670).

2²²²⁴⁴⁶ is an apocalyptic number.

222446 is a deficient number, since it is larger than the sum of its proper divisors (158914).

222446 is a wasteful number, since it uses less digits than its factorization.

222446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15898.

The product of its digits is 768, while the sum is 20.

The square root of 222446 is about 471.6418132439. The cubic root of 222446 is about 60.5910111673.

Adding to 222446 its reverse (644222), we get a palindrome (866668).

The spelling of 222446 in words is "two hundred twenty-two thousand, four hundred forty-six".