9159940 has 48 divisors (see below), whose sum is σ = 21092400. Its totient is φ = 3325952.

The previous prime is 9159907. The next prime is 9159977. The reversal of 9159940 is 499519.

9159940 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 492804 + 8667136 = 702^2 + 2944^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9159940.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9396 + ... + 10324.

It is an arithmetic number, because the mean of its divisors is an integer number (439425).

Almost surely, 2^9159940 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 9159940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10546200).

9159940 is an abundant number, since it is smaller than the sum of its proper divisors (11932460).

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

9159940 is a wasteful number, since it uses less digits than its factorization.

9159940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 9159940 is about 3026.5392777891. The cubic root of 9159940 is about 209.2333344802.

It can be divided in two parts, 91 and 59940, that added together give a triangular number (60031 = T₃₄₆).

The spelling of 9159940 in words is "nine million, one hundred fifty-nine thousand, nine hundred forty".