9328440 has 128 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 2188800.

The previous prime is 9328439. The next prime is 9328441. The reversal of 9328440 is 448239.

It is a happy number.

9328440 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9328439) and next prime (9328441).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 9328398 and 9328407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9328441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48745 + ... + 48935.

It is an arithmetic number, because the mean of its divisors is an integer number (246240).

Almost surely, 2^9328440 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 9328440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15759360).

9328440 is an abundant number, since it is smaller than the sum of its proper divisors (22190280).

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

9328440 is a wasteful number, since it uses less digits than its factorization.

9328440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 9328440 is about 3054.2494986494. The cubic root of 9328440 is about 210.5085181884.

The spelling of 9328440 in words is "nine million, three hundred twenty-eight thousand, four hundred forty".