9840497328 has 320 divisors, whose sum is σ = 31819392000. Its totient is φ = 2893418496.

The previous prime is 9840497323. The next prime is 9840497357. The reversal of 9840497328 is 8237940489.

9840497328 is a `hidden beast` number, since 98 + 40 + 497 + 3 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (9840497323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15209101 + ... + 15209747.

It is an arithmetic number, because the mean of its divisors is an integer number (99435600).

Almost surely, 2^9840497328 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 9840497328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15909696000).

9840497328 is an abundant number, since it is smaller than the sum of its proper divisors (21978894672).

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

9840497328 is a wasteful number, since it uses less digits than its factorization.

9840497328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 9840497328 is about 99199.2808844903. The cubic root of 9840497328 is about 2142.9186402465.

The spelling of 9840497328 in words is "nine billion, eight hundred forty million, four hundred ninety-seven thousand, three hundred twenty-eight".