11240520 has 64 divisors (see below), whose sum is σ = 34456320. Its totient is φ = 2932224.

The previous prime is 11240483. The next prime is 11240521. The reversal of 11240520 is 2504211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11240520.

It is not an unprimeable number, because it can be changed into a prime (11240521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4644 + ... + 6636.

It is an arithmetic number, because the mean of its divisors is an integer number (538380).

Almost surely, 2^11240520 is an apocalyptic number.

11240520 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 11240520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17228160).

11240520 is an abundant number, since it is smaller than the sum of its proper divisors (23215800).

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

11240520 is a wasteful number, since it uses less digits than its factorization.

11240520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054 (or 2050 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 11240520 is about 3352.6884734493. The cubic root of 11240520 is about 224.0072808008.

Adding to 11240520 its reverse (2504211), we get a palindrome (13744731).

The spelling of 11240520 in words is "eleven million, two hundred forty thousand, five hundred twenty".