11820306 has 16 divisors (see below), whose sum is σ = 23965344. Its totient is φ = 3885984.

The previous prime is 11820301. The next prime is 11820329. The reversal of 11820306 is 60302811.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11820301) 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, 13056 + ... + 13931.

It is an arithmetic number, because the mean of its divisors is an integer number (1497834).

Almost surely, 2^11820306 is an apocalyptic number.

11820306 is an abundant number, since it is smaller than the sum of its proper divisors (12145038).

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

11820306 is a wasteful number, since it uses less digits than its factorization.

11820306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27065.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 11820306 is about 3438.0671895703. The cubic root of 11820306 is about 227.7943282221.

The spelling of 11820306 in words is "eleven million, eight hundred twenty thousand, three hundred six".