440240400220 has 24 divisors (see below), whose sum is σ = 973162990800. Its totient is φ = 166827940992.

The previous prime is 440240400191. The next prime is 440240400233. The reversal of 440240400220 is 22004042044.

It is a junction number, because it is equal to n+sod(n) for n = 440240400191 and 440240400200.

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, 579263305 + ... + 579264064.

It is an arithmetic number, because the mean of its divisors is an integer number (40548457950).

Almost surely, 2^440240400220 is an apocalyptic number.

It is an amenable number.

440240400220 is an abundant number, since it is smaller than the sum of its proper divisors (532922590580).

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

440240400220 is a wasteful number, since it uses less digits than its factorization.

440240400220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158527397 (or 1158527395 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 440240400220 its reverse (22004042044), we get a palindrome (462244442264).

The spelling of 440240400220 in words is "four hundred forty billion, two hundred forty million, four hundred thousand, two hundred twenty".