8440444080040 has 64 divisors (see below), whose sum is σ = 21869678540160. Its totient is φ = 2871775944960.

The previous prime is 8440444080023. The next prime is 8440444080067. The reversal of 8440444080040 is 400804440448.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 8440444079975 and 8440444080002.

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, 115018447 + ... + 115091806.

It is an arithmetic number, because the mean of its divisors is an integer number (341713727190).

Almost surely, 2^{8440444080040} is an apocalyptic number.

It is an amenable number.

8440444080040 is an abundant number, since it is smaller than the sum of its proper divisors (13429234460120).

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

8440444080040 is a wasteful number, since it uses less digits than its factorization.

8440444080040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230110402 (or 230110398 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 40.

The spelling of 8440444080040 in words is "eight trillion, four hundred forty billion, four hundred forty-four million, eighty thousand, forty".