9231280 has 80 divisors (see below), whose sum is σ = 23302080. Its totient is φ = 3390464.

The previous prime is 9231253. The next prime is 9231281. The reversal of 9231280 is 821329.

9231280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9231281) 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, 53274 + ... + 53446.

It is an arithmetic number, because the mean of its divisors is an integer number (291276).

Almost surely, 2^9231280 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 9231280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11651040).

9231280 is an abundant number, since it is smaller than the sum of its proper divisors (14070800).

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

9231280 is a wasteful number, since it uses less digits than its factorization.

9231280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 9231280 is about 3038.3021574557. The cubic root of 9231280 is about 209.7751183005.

The spelling of 9231280 in words is "nine million, two hundred thirty-one thousand, two hundred eighty".