440044004430 has 80 divisors (see below), whose sum is σ = 1184157342720. Its totient is φ = 117253044288.

The previous prime is 440044004359. The next prime is 440044004443. The reversal of 440044004430 is 34400440044.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 440044004394 and 440044004403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 823612 + ... + 1248368.

It is an arithmetic number, because the mean of its divisors is an integer number (14801966784).

Almost surely, 2^440044004430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440044004430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592078671360).

440044004430 is an abundant number, since it is smaller than the sum of its proper divisors (744113338290).

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

440044004430 is a wasteful number, since it uses less digits than its factorization.

440044004430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426055 (or 426046 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 440044004430 its reverse (34400440044), we get a palindrome (474444444474).

The spelling of 440044004430 in words is "four hundred forty billion, forty-four million, four thousand, four hundred thirty".