440321222 has 16 divisors (see below), whose sum is σ = 738100944. Its totient is φ = 195264000.

The previous prime is 440321209. The next prime is 440321243. The reversal of 440321222 is 222123044.

It is a junction number, because it is equal to n+sod(n) for n = 440321194 and 440321203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243179 + ... + 244982.

It is an arithmetic number, because the mean of its divisors is an integer number (46131309).

Almost surely, 2^440321222 is an apocalyptic number.

440321222 is a deficient number, since it is larger than the sum of its proper divisors (297779722).

440321222 is a wasteful number, since it uses less digits than its factorization.

440321222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488215.

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

The square root of 440321222 is about 20983.8323954420. The cubic root of 440321222 is about 760.7755368252.

Adding to 440321222 its reverse (222123044), we get a palindrome (662444266).

It can be divided in two parts, 44032 and 1222, that added together give a palindrome (45254).

The spelling of 440321222 in words is "four hundred forty million, three hundred twenty-one thousand, two hundred twenty-two".