9838540 has 24 divisors (see below), whose sum is σ = 21374640. Its totient is φ = 3799488.

The previous prime is 9838531. The next prime is 9838547. The reversal of 9838540 is 458389.

It is a self number, because there is not a number n which added to its sum of digits gives 9838540.

It is not an unprimeable number, because it can be changed into a prime (9838547) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7902 + ... + 9061.

It is an arithmetic number, because the mean of its divisors is an integer number (890610).

Almost surely, 2^9838540 is an apocalyptic number.

It is an amenable number.

9838540 is an abundant number, since it is smaller than the sum of its proper divisors (11536100).

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

9838540 is a wasteful number, since it uses less digits than its factorization.

9838540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17001 (or 16999 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 9838540 is about 3136.6447041385. The cubic root of 9838540 is about 214.2776551466.

The spelling of 9838540 in words is "nine million, eight hundred thirty-eight thousand, five hundred forty".