11209090 has 16 divisors (see below), whose sum is σ = 20253240. Its totient is φ = 4466560.

The previous prime is 11209063. The next prime is 11209097. The reversal of 11209090 is 9090211.

It can be written as a sum of positive squares in 4 ways, for example, as 9603801 + 1605289 = 3099^2 + 1267^2 .

11209090 is a modest number, since divided by 9090 gives 1120 as remainder.

It is not an unprimeable number, because it can be changed into a prime (11209097) 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, 816 + ... + 4804.

Almost surely, 2^11209090 is an apocalyptic number.

11209090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11209090 is a deficient number, since it is larger than the sum of its proper divisors (9044150).

11209090 is a wasteful number, since it uses less digits than its factorization.

11209090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 11209090 is about 3347.9979091989. The cubic root of 11209090 is about 223.7983011108.

The spelling of 11209090 in words is "eleven million, two hundred nine thousand, ninety".