11040220 has 12 divisors (see below), whose sum is σ = 23184504. Its totient is φ = 4416080.

The previous prime is 11040217. The next prime is 11040221. The reversal of 11040220 is 2204011.

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 = 11040197 and 11040206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11040221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275986 + ... + 276025.

It is an arithmetic number, because the mean of its divisors is an integer number (1932042).

Almost surely, 2^11040220 is an apocalyptic number.

11040220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11040220 is an abundant number, since it is smaller than the sum of its proper divisors (12144284).

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

11040220 is a wasteful number, since it uses less digits than its factorization.

11040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552020 (or 552018 counting only the distinct ones).

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

The square root of 11040220 is about 3322.6826511119. The cubic root of 11040220 is about 222.6687353643.

Adding to 11040220 its reverse (2204011), we get a palindrome (13244231).

The spelling of 11040220 in words is "eleven million, forty thousand, two hundred twenty".