11090240 has 56 divisors (see below), whose sum is σ = 30187392. Its totient is φ = 3801600.

The previous prime is 11090237. The next prime is 11090251. The reversal of 11090240 is 4209011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

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, 236 + ... + 4715.

Almost surely, 2^11090240 is an apocalyptic number.

11090240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11090240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15093696).

11090240 is an abundant number, since it is smaller than the sum of its proper divisors (19097152).

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

11090240 is an equidigital number, since it uses as much as digits as its factorization.

11090240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975 (or 4965 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 11090240 is about 3330.2011951232. The cubic root of 11090240 is about 223.0045110257.

Adding to 11090240 its reverse (4209011), we get a palindrome (15299251).

The spelling of 11090240 in words is "eleven million, ninety thousand, two hundred forty".