441440040 has 64 divisors (see below), whose sum is σ = 1332812160. Its totient is φ = 116962560.

The previous prime is 441440039. The next prime is 441440047. The reversal of 441440040 is 40044144.

It is a junction number, because it is equal to n+sod(n) for n = 441439989 and 441440016.

It is not an unprimeable number, because it can be changed into a prime (441440047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7125 + ... + 30555.

It is an arithmetic number, because the mean of its divisors is an integer number (20825190).

Almost surely, 2^441440040 is an apocalyptic number.

441440040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 441440040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666406080).

441440040 is an abundant number, since it is smaller than the sum of its proper divisors (891372120).

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

441440040 is a wasteful number, since it uses less digits than its factorization.

441440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23602 (or 23598 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 441440040 is about 21010.4745305764. The cubic root of 441440040 is about 761.4193467093.

Adding to 441440040 its reverse (40044144), we get a palindrome (481484184).

The spelling of 441440040 in words is "four hundred forty-one million, four hundred forty thousand, forty".