440423413122 has 128 divisors (see below), whose sum is σ = 1160800819200. Its totient is φ = 107924659200.

The previous prime is 440423413121. The next prime is 440423413123. The reversal of 440423413122 is 221314324044.

It is an interprime number because it is at equal distance from previous prime (440423413121) and next prime (440423413123).

It is a self number, because there is not a number n which added to its sum of digits gives 440423413122.

It is not an unprimeable number, because it can be changed into a prime (440423413121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2011404 + ... + 2219592.

It is an arithmetic number, because the mean of its divisors is an integer number (9068756400).

Almost surely, 2^440423413122 is an apocalyptic number.

440423413122 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 440423413122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580400409600).

440423413122 is an abundant number, since it is smaller than the sum of its proper divisors (720377406078).

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

440423413122 is a wasteful number, since it uses less digits than its factorization.

440423413122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208472.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 440423413122 its reverse (221314324044), we get a palindrome (661737737166).

The spelling of 440423413122 in words is "four hundred forty billion, four hundred twenty-three million, four hundred thirteen thousand, one hundred twenty-two".