9540040 has 32 divisors (see below), whose sum is σ = 21744000. Its totient is φ = 3766464.

The previous prime is 9540019. The next prime is 9540059. The reversal of 9540040 is 400459.

It is a junction number, because it is equal to n+sod(n) for n = 9539993 and 9540020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1651 + ... + 4669.

It is an arithmetic number, because the mean of its divisors is an integer number (679500).

Almost surely, 2^9540040 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 9540040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10872000).

9540040 is an abundant number, since it is smaller than the sum of its proper divisors (12203960).

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

9540040 is a wasteful number, since it uses less digits than its factorization.

9540040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3105 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 9540040 is about 3088.6955175284. The cubic root of 9540040 is about 212.0883101886.

Adding to 9540040 its reverse (400459), we get a palindrome (9940499).

The spelling of 9540040 in words is "nine million, five hundred forty thousand, forty".