11090020 has 24 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 4379232.

The previous prime is 11089999. The next prime is 11090029. The reversal of 11090020 is 2009011.

It is not an unprimeable number, because it can be changed into a prime (11090029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1930 + ... + 5089.

It is an arithmetic number, because the mean of its divisors is an integer number (982800).

Almost surely, 2^11090020 is an apocalyptic number.

11090020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11090020 is an abundant number, since it is smaller than the sum of its proper divisors (12497180).

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

11090020 is a wasteful number, since it uses less digits than its factorization.

11090020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7107 (or 7105 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 11090020 is about 3330.1681639221. The cubic root of 11090020 is about 223.0030364163.

Adding to 11090020 its reverse (2009011), we get a palindrome (13099031).

The spelling of 11090020 in words is "eleven million, ninety thousand, twenty".