11090320 has 20 divisors (see below), whose sum is σ = 25785180. Its totient is φ = 4436096.

The previous prime is 11090297. The next prime is 11090327. The reversal of 11090320 is 2309011.

It can be written as a sum of positive squares in 2 ways, for example, as 5253264 + 5837056 = 2292^2 + 2416^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 11090294 and 11090303.

It is not an unprimeable number, because it can be changed into a prime (11090327) 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, 69235 + ... + 69394.

It is an arithmetic number, because the mean of its divisors is an integer number (1289259).

Almost surely, 2^11090320 is an apocalyptic number.

11090320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11090320 is an abundant number, since it is smaller than the sum of its proper divisors (14694860).

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

11090320 is a wasteful number, since it uses less digits than its factorization.

11090320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138642 (or 138636 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 11090320 is about 3330.2132063878. The cubic root of 11090320 is about 223.0050472424.

Adding to 11090320 its reverse (2309011), we get a palindrome (13399331).

The spelling of 11090320 in words is "eleven million, ninety thousand, three hundred twenty".