9438946540 has 96 divisors (see below), whose sum is σ = 21933918720. Its totient is φ = 3395943936.

The previous prime is 9438946493. The next prime is 9438946571. The reversal of 9438946540 is 456498349.

9438946540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 1193439 + ... + 1201321.

It is an arithmetic number, because the mean of its divisors is an integer number (228478320).

Almost surely, 2^9438946540 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 9438946540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10966959360).

9438946540 is an abundant number, since it is smaller than the sum of its proper divisors (12494972180).

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

9438946540 is a wasteful number, since it uses less digits than its factorization.

9438946540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8071 (or 8069 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The square root of 9438946540 is about 97154.2409779419. The cubic root of 9438946540 is about 2113.3649907741.

The spelling of 9438946540 in words is "nine billion, four hundred thirty-eight million, nine hundred forty-six thousand, five hundred forty".