9438038340 has 96 divisors (see below), whose sum is σ = 28273607040. Its totient is φ = 2345241600.

The previous prime is 9438038333. The next prime is 9438038353. The reversal of 9438038340 is 438308349.

It is a junction number, because it is equal to n+sod(n) for n = 9438038292 and 9438038301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1680 + ... + 137400.

It is an arithmetic number, because the mean of its divisors is an integer number (294516740).

Almost surely, 2^9438038340 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 9438038340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14136803520).

9438038340 is an abundant number, since it is smaller than the sum of its proper divisors (18835568700).

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

9438038340 is a wasteful number, since it uses less digits than its factorization.

9438038340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135813 (or 135811 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 9438038340 is about 97149.5668544127. The cubic root of 9438038340 is about 2113.2972070923.

The spelling of 9438038340 in words is "nine billion, four hundred thirty-eight million, thirty-eight thousand, three hundred forty".