9042240 has 56 divisors (see below), whose sum is σ = 28712160. Its totient is φ = 2411008.

The previous prime is 9042239. The next prime is 9042251. The reversal of 9042240 is 422409.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3750 + ... + 5669.

Almost surely, 2^9042240 is an apocalyptic number.

It is an amenable number.

9042240 is an abundant number, since it is smaller than the sum of its proper divisors (19669920).

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

9042240 is a wasteful number, since it uses less digits than its factorization.

9042240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9439 (or 9429 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 9042240 is about 3007.0317590608. The cubic root of 9042240 is about 208.3332920889. Note that the first 3 decimals are identical.

Adding to 9042240 its reverse (422409), we get a palindrome (9464649).

The spelling of 9042240 in words is "nine million, forty-two thousand, two hundred forty".