440222 has 8 divisors (see below), whose sum is σ = 667056. Its totient is φ = 217872.

The previous prime is 440221. The next prime is 440227. The reversal of 440222 is 222044.

It is a happy number.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 440197 and 440206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440221) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 863 + ... + 1274.

It is an arithmetic number, because the mean of its divisors is an integer number (83382).

2⁴⁴⁰²²² is an apocalyptic number.

440222 is a deficient number, since it is larger than the sum of its proper divisors (226834).

440222 is a wasteful number, since it uses less digits than its factorization.

440222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 440222 is about 663.4922757651. The cubic root of 440222 is about 76.0718388137.

Adding to 440222 its reverse (222044), we get a palindrome (662266).

The spelling of 440222 in words is "four hundred forty thousand, two hundred twenty-two", and thus it is an iban number.