440001222 has 32 divisors (see below), whose sum is σ = 897675648. Its totient is φ = 143747136.

The previous prime is 440001209. The next prime is 440001223. The reversal of 440001222 is 222100044.

It is a super-2 number, since 2×440001222² = 387202150722986568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440001223) 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, 68313 + ... + 74475.

It is an arithmetic number, because the mean of its divisors is an integer number (28052364).

Almost surely, 2^440001222 is an apocalyptic number.

440001222 is an abundant number, since it is smaller than the sum of its proper divisors (457674426).

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

440001222 is a wasteful number, since it uses less digits than its factorization.

440001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 440001222 is about 20976.2060916649. The cubic root of 440001222 is about 760.5911962740.

Adding to 440001222 its reverse (222100044), we get a palindrome (662101266).

The spelling of 440001222 in words is "four hundred forty million, one thousand, two hundred twenty-two".