11240440 has 32 divisors (see below), whose sum is σ = 25472160. Its totient is φ = 4464000.

The previous prime is 11240423. The next prime is 11240483. The reversal of 11240440 is 4404211.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5110 + ... + 6970.

It is an arithmetic number, because the mean of its divisors is an integer number (796005).

Almost surely, 2^11240440 is an apocalyptic number.

11240440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11240440 is an abundant number, since it is smaller than the sum of its proper divisors (14231720).

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

11240440 is a wasteful number, since it uses less digits than its factorization.

11240440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023 (or 2019 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 11240440 is about 3352.6765427044. The cubic root of 11240440 is about 224.0067493715.

Adding to 11240440 its reverse (4404211), we get a palindrome (15644651).

The spelling of 11240440 in words is "eleven million, two hundred forty thousand, four hundred forty".