9944240 has 20 divisors (see below), whose sum is σ = 23120544. Its totient is φ = 3977664.

The previous prime is 9944197. The next prime is 9944251. The reversal of 9944240 is 424499.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 9944197 and 9944206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62072 + ... + 62231.

Almost surely, 2^9944240 is an apocalyptic number.

It is an amenable number.

9944240 is an abundant number, since it is smaller than the sum of its proper divisors (13176304).

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

9944240 is a wasteful number, since it uses less digits than its factorization.

9944240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124316 (or 124310 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 9944240 is about 3153.4489055636. The cubic root of 9944240 is about 215.0422848146.

The spelling of 9944240 in words is "nine million, nine hundred forty-four thousand, two hundred forty".