9873440 has 48 divisors (see below), whose sum is σ = 24349248. Its totient is φ = 3776256.

The previous prime is 9873439. The next prime is 9873449. The reversal of 9873440 is 443789.

It is a self number, because there is not a number n which added to its sum of digits gives 9873440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9873449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2339 + ... + 5021.

It is an arithmetic number, because the mean of its divisors is an integer number (507276).

Almost surely, 2^9873440 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 9873440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12174624).

9873440 is an abundant number, since it is smaller than the sum of its proper divisors (14475808).

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

9873440 is a wasteful number, since it uses less digits than its factorization.

9873440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721 (or 2713 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 9873440 is about 3142.2030488178. The cubic root of 9873440 is about 214.5307233537.

The spelling of 9873440 in words is "nine million, eight hundred seventy-three thousand, four hundred forty".