440400400044 has 24 divisors (see below), whose sum is σ = 1121019200448. Its totient is φ = 133454666640.

The previous prime is 440400400043. The next prime is 440400400171. The reversal of 440400400044 is 440004004044.

It is a junction number, because it is equal to n+sod(n) for n = 440400399987 and 440400400023.

It is not an unprimeable number, because it can be changed into a prime (440400400043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1668183202 + ... + 1668183465.

It is an arithmetic number, because the mean of its divisors is an integer number (46709133352).

Almost surely, 2^440400400044 is an apocalyptic number.

440400400044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

440400400044 is an abundant number, since it is smaller than the sum of its proper divisors (680618800404).

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

440400400044 is a wasteful number, since it uses less digits than its factorization.

440400400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336366685 (or 3336366683 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 440400400044 its reverse (440004004044), we get a palindrome (880404404088).

It can be divided in two parts, 4404004000 and 44, that added together give a palindrome (4404004044).

The spelling of 440400400044 in words is "four hundred forty billion, four hundred million, four hundred thousand, forty-four".