440004400444 has 48 divisors (see below), whose sum is σ = 883943424000. Its totient is φ = 187730637696.

The previous prime is 440004400357. The next prime is 440004400453. The reversal of 440004400444 is 444004400044.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31104037 + ... + 31118179.

It is an arithmetic number, because the mean of its divisors is an integer number (18415488000).

Almost surely, 2^440004400444 is an apocalyptic number.

It is an amenable number.

440004400444 is an abundant number, since it is smaller than the sum of its proper divisors (443939023556).

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

440004400444 is a wasteful number, since it uses less digits than its factorization.

440004400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19042 (or 19040 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 440004400444 its reverse (444004400044), we get a palindrome (884008800488).

It can be divided in two parts, 44000 and 4400444, that added together give a palindrome (4444444).

The spelling of 440004400444 in words is "four hundred forty billion, four million, four hundred thousand, four hundred forty-four".