9438818880 has 224 divisors, whose sum is σ = 32137136640. Its totient is φ = 2338652160.

The previous prime is 9438818869. The next prime is 9438818891. The reversal of 9438818880 is 888188349.

It is an interprime number because it is at equal distance from previous prime (9438818869) and next prime (9438818891).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 9438818880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1285620 + ... + 1292940.

It is an arithmetic number, because the mean of its divisors is an integer number (143469360).

Almost surely, 2^9438818880 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 9438818880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16068568320).

9438818880 is an abundant number, since it is smaller than the sum of its proper divisors (22698317760).

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

9438818880 is a wasteful number, since it uses less digits than its factorization.

9438818880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437 (or 7427 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 57.

The square root of 9438818880 is about 97153.5839791822. The cubic root of 9438818880 is about 2113.3554631081.

The spelling of 9438818880 in words is "nine billion, four hundred thirty-eight million, eight hundred eighteen thousand, eight hundred eighty".