11090220 has 24 divisors (see below), whose sum is σ = 31052784. Its totient is φ = 2957376.

The previous prime is 11090207. The next prime is 11090221. The reversal of 11090220 is 2209011.

It is a happy number.

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 11090220.

It is not an unprimeable number, because it can be changed into a prime (11090221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 92359 + ... + 92478.

It is an arithmetic number, because the mean of its divisors is an integer number (1293866).

Almost surely, 2^11090220 is an apocalyptic number.

11090220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11090220 is an abundant number, since it is smaller than the sum of its proper divisors (19962564).

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

11090220 is a wasteful number, since it uses less digits than its factorization.

11090220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184849 (or 184847 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 11090220 is about 3330.1981923003. The cubic root of 11090220 is about 223.0043769711.

Adding to 11090220 its reverse (2209011), we get a palindrome (13299231).

The spelling of 11090220 in words is "eleven million, ninety thousand, two hundred twenty".