11133240 has 96 divisors (see below), whose sum is σ = 35387280. Its totient is φ = 2801664.

The previous prime is 11133229. The next prime is 11133257. The reversal of 11133240 is 4233111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43192 + ... + 43448.

Almost surely, 2^11133240 is an apocalyptic number.

11133240 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 11133240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17693640).

11133240 is an abundant number, since it is smaller than the sum of its proper divisors (24254040).

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

11133240 is a wasteful number, since it uses less digits than its factorization.

11133240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11133240 is about 3336.6510156143. The cubic root of 11133240 is about 223.2923565325.

Adding to 11133240 its reverse (4233111), we get a palindrome (15366351).

The spelling of 11133240 in words is "eleven million, one hundred thirty-three thousand, two hundred forty".