8440440040044 has 48 divisors (see below), whose sum is σ = 21934600169440. Its totient is φ = 2806797147840.

The previous prime is 8440440040009. The next prime is 8440440040063. The reversal of 8440440040044 is 4400400440448.

It is a happy number.

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 = 8440440039990 and 8440440040008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92771899 + ... + 92862834.

Almost surely, 2^{8440440040044} is an apocalyptic number.

It is an amenable number.

8440440040044 is an abundant number, since it is smaller than the sum of its proper divisors (13494160129396).

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

8440440040044 is a wasteful number, since it uses less digits than its factorization.

8440440040044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185635167 (or 185635159 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 36.

The spelling of 8440440040044 in words is "eight trillion, four hundred forty billion, four hundred forty million, forty thousand, forty-four".