8888880408440 has 64 divisors (see below), whose sum is σ = 20244452860800. Its totient is φ = 3512105337472.

The previous prime is 8888880408379. The next prime is 8888880408493. The reversal of 8888880408440 is 448040888888.

It is a happy number.

It is a super-2 number, since 2×8888880408440² (a number of 27 digits) contains 22 as substring.

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, 19169651 + ... + 19627869.

It is an arithmetic number, because the mean of its divisors is an integer number (316319575950).

Almost surely, 2^{8888880408440} 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 8888880408440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10122226430400).

8888880408440 is an abundant number, since it is smaller than the sum of its proper divisors (11355572452360).

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

8888880408440 is a wasteful number, since it uses less digits than its factorization.

8888880408440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464156 (or 464152 counting only the distinct ones).

The product of its (nonzero) digits is 134217728, while the sum is 68.

The spelling of 8888880408440 in words is "eight trillion, eight hundred eighty-eight billion, eight hundred eighty million, four hundred eight thousand, four hundred forty".