9640224 has 144 divisors (see below), whose sum is σ = 31842720. Its totient is φ = 2734080.

The previous prime is 9640219. The next prime is 9640231. The reversal of 9640224 is 4220469.

9640224 is nontrivially palindromic in base 5.

It is a tau number, because it is divible by the number of its divisors (144).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53767 + ... + 53945.

It is an arithmetic number, because the mean of its divisors is an integer number (221130).

Almost surely, 2^9640224 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 9640224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15921360).

9640224 is an abundant number, since it is smaller than the sum of its proper divisors (22202496).

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

9640224 is a wasteful number, since it uses less digits than its factorization.

9640224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 9640224 is about 3104.8710118135. The cubic root of 9640224 is about 212.8281361783.

The spelling of 9640224 in words is "nine million, six hundred forty thousand, two hundred twenty-four".