9724320 has 96 divisors (see below), whose sum is σ = 34050240. Its totient is φ = 2592000.

The previous prime is 9724291. The next prime is 9724327. The reversal of 9724320 is 234279.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9724327) 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, 3195 + ... + 5445.

It is an arithmetic number, because the mean of its divisors is an integer number (354690).

Almost surely, 2^9724320 is an apocalyptic number.

9724320 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9724320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17025120).

9724320 is an abundant number, since it is smaller than the sum of its proper divisors (24325920).

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

9724320 is a wasteful number, since it uses less digits than its factorization.

9724320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275 (or 2261 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 9724320 is about 3118.3841969841. The cubic root of 9724320 is about 213.4452104160.

Adding to 9724320 its reverse (234279), we get a palindrome (9958599).

The spelling of 9724320 in words is "nine million, seven hundred twenty-four thousand, three hundred twenty".