440004112020 has 216 divisors, whose sum is σ = 1467718997472. Its totient is φ = 106618596480.

The previous prime is 440004112019. The next prime is 440004112033. The reversal of 440004112020 is 20211400044.

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 = 440004111984 and 440004112002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 75508347 + ... + 75514173.

Almost surely, 2^440004112020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440004112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733859498736).

440004112020 is an abundant number, since it is smaller than the sum of its proper divisors (1027714885452).

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

440004112020 is a wasteful number, since it uses less digits than its factorization.

440004112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331 (or 9315 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 440004112020 its reverse (20211400044), we get a palindrome (460215512064).

The spelling of 440004112020 in words is "four hundred forty billion, four million, one hundred twelve thousand, twenty".