11240020 has 48 divisors (see below), whose sum is σ = 27115200. Its totient is φ = 3870720.

The previous prime is 11240017. The next prime is 11240051. The reversal of 11240020 is 2004211.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11239979 and 11240006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2836 + ... + 5524.

It is an arithmetic number, because the mean of its divisors is an integer number (564900).

Almost surely, 2^11240020 is an apocalyptic number.

11240020 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 11240020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13557600).

11240020 is an abundant number, since it is smaller than the sum of its proper divisors (15875180).

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

11240020 is a wasteful number, since it uses less digits than its factorization.

11240020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728 (or 2726 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 11240020 is about 3352.6139055966. The cubic root of 11240020 is about 224.0039593263.

Adding to 11240020 its reverse (2004211), we get a palindrome (13244231).

The spelling of 11240020 in words is "eleven million, two hundred forty thousand, twenty".