11090900 has 18 divisors (see below), whose sum is σ = 24067470. Its totient is φ = 4436320.

The previous prime is 11090881. The next prime is 11090917. The reversal of 11090900 is 909011.

It can be written as a sum of positive squares in 3 ways, for example, as 1567504 + 9523396 = 1252^2 + 3086^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 55355 + ... + 55554.

Almost surely, 2^11090900 is an apocalyptic number.

11090900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11090900 is an abundant number, since it is smaller than the sum of its proper divisors (12976570).

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

11090900 is a wasteful number, since it uses less digits than its factorization.

11090900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110923 (or 110916 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 11090900 is about 3330.3002867609. The cubic root of 11090900 is about 223.0089347369.

Adding to 11090900 its reverse (909011), we get a palindrome (11999911).

It can be divided in two parts, 1 and 1090900, that added together give a palindrome (1090901).

The spelling of 11090900 in words is "eleven million, ninety thousand, nine hundred".