440406550044 has 144 divisors (see below), whose sum is σ = 1146809664000. Its totient is φ = 142441932672.

The previous prime is 440406550007. The next prime is 440406550139. The reversal of 440406550044 is 440055604044.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 440406549990 and 440406550008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 259214307 + ... + 259216005.

It is an arithmetic number, because the mean of its divisors is an integer number (7963956000).

Almost surely, 2^440406550044 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 440406550044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573404832000).

440406550044 is an abundant number, since it is smaller than the sum of its proper divisors (706403113956).

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

440406550044 is a wasteful number, since it uses less digits than its factorization.

440406550044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184 (or 3179 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 440406550044 in words is "four hundred forty billion, four hundred six million, five hundred fifty thousand, forty-four".