11240420 has 12 divisors (see below), whose sum is σ = 23604924. Its totient is φ = 4496160.

The previous prime is 11240401. The next prime is 11240423. The reversal of 11240420 is 2404211.

11240420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2795584 + 8444836 = 1672^2 + 2906^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11240395 and 11240404.

It is not an unprimeable number, because it can be changed into a prime (11240423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280991 + ... + 281030.

It is an arithmetic number, because the mean of its divisors is an integer number (1967077).

Almost surely, 2^11240420 is an apocalyptic number.

11240420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11240420 is an abundant number, since it is smaller than the sum of its proper divisors (12364504).

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

11240420 is a wasteful number, since it uses less digits than its factorization.

11240420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562030 (or 562028 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 11240420 is about 3352.6735600115. The cubic root of 11240420 is about 224.0066165137.

Adding to 11240420 its reverse (2404211), we get a palindrome (13644631).

It can be divided in two parts, 1 and 1240420, that added together give a palindrome (1240421).

The spelling of 11240420 in words is "eleven million, two hundred forty thousand, four hundred twenty".