9440240 has 40 divisors (see below), whose sum is σ = 22096800. Its totient is φ = 3750656.

The previous prime is 9440227. The next prime is 9440243. The reversal of 9440240 is 420449.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9440243) 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, 15461 + ... + 16059.

It is an arithmetic number, because the mean of its divisors is an integer number (552420).

Almost surely, 2^9440240 is an apocalyptic number.

It is an amenable number.

9440240 is an abundant number, since it is smaller than the sum of its proper divisors (12656560).

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

9440240 is a wasteful number, since it uses less digits than its factorization.

9440240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 9440240 is about 3072.4973555725. The cubic root of 9440240 is about 211.3461520905.

Adding to 9440240 its reverse (420449), we get a palindrome (9860689).

The spelling of 9440240 in words is "nine million, four hundred forty thousand, two hundred forty".