440240400222 has 128 divisors (see below), whose sum is σ = 1042948583424. Its totient is φ = 121280882688.

The previous prime is 440240400191. The next prime is 440240400233. The reversal of 440240400222 is 222004042044.

It is a junction number, because it is equal to n+sod(n) for n = 440240400192 and 440240400201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 230129938 + ... + 230131850.

It is an arithmetic number, because the mean of its divisors is an integer number (8148035808).

Almost surely, 2^440240400222 is an apocalyptic number.

440240400222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 440240400222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521474291712).

440240400222 is an abundant number, since it is smaller than the sum of its proper divisors (602708183202).

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

440240400222 is a wasteful number, since it uses less digits than its factorization.

440240400222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 440240400222 its reverse (222004042044), we get a palindrome (662244442266).

The spelling of 440240400222 in words is "four hundred forty billion, two hundred forty million, four hundred thousand, two hundred twenty-two".