9648440 has 48 divisors (see below), whose sum is σ = 22521240. Its totient is φ = 3720000.

The previous prime is 9648439. The next prime is 9648473. The reversal of 9648440 is 448469.

It is a self number, because there is not a number n which added to its sum of digits gives 9648440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38315 + ... + 38565.

Almost surely, 2^9648440 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 9648440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11260620).

9648440 is an abundant number, since it is smaller than the sum of its proper divisors (12872800).

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

9648440 is a wasteful number, since it uses less digits than its factorization.

9648440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 9648440 is about 3106.1938123691. The cubic root of 9648440 is about 212.8885808128. Note that the first 3 decimals are identical.

The spelling of 9648440 in words is "nine million, six hundred forty-eight thousand, four hundred forty".