9240 has 64 divisors (see below), whose sum is σ = 34560.
Its totient is φ = 1920.
The previous prime is 9239. The next prime is 9241. The reversal of 9240 is 429.
It is an interprime number because it is at equal distance from previous prime (9239) and next prime (9241).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is an Ulam number.
It is a nialpdrome in base 12.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9241) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835 + ... + 845.
It is an arithmetic number, because the mean of its divisors is an integer number (540).
29240 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 9240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17280).
9240 is an abundant number, since it is smaller than the sum of its proper divisors (25320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9240 is a wasteful number, since it uses less digits than its factorization.
9240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32 (or 28 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 9240 is about 96.1249187256.
The cubic root of 9240 is about 20.9841149712.
9240 divided by its sum of digits (15) gives a palindrome (616).
Adding to 9240 its reverse (429), we get a palindrome (9669).
The spelling of 9240 in words is "nine thousand, two hundred forty".