440001320220 has 216 divisors, whose sum is σ = 1693719741168. Its totient is φ = 91428825600.

The previous prime is 440001320191. The next prime is 440001320221. The reversal of 440001320220 is 22023100044.

440001320220 is a `hidden beast` number, since 440 + 0 + 0 + 1 + 3 + 2 + 0 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 440001320193 and 440001320202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440001320221) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2170561 + ... + 2364600.

It is an arithmetic number, because the mean of its divisors is an integer number (7841295098).

Almost surely, 2^440001320220 is an apocalyptic number.

It is an amenable number.

440001320220 is an abundant number, since it is smaller than the sum of its proper divisors (1253718420948).

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

440001320220 is a wasteful number, since it uses less digits than its factorization.

440001320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535201 (or 4535189 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 440001320220 its reverse (22023100044), we get a palindrome (462024420264).

The spelling of 440001320220 in words is "four hundred forty billion, one million, three hundred twenty thousand, two hundred twenty".