11820214 has 16 divisors (see below), whose sum is σ = 20596896. Its totient is φ = 4982400.

The previous prime is 11820209. The next prime is 11820239. The reversal of 11820214 is 41202811.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11820191 and 11820200.

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 7 ways as a sum of consecutive naturals, for example, 6067 + ... + 7774.

It is an arithmetic number, because the mean of its divisors is an integer number (1287306).

Almost surely, 2^11820214 is an apocalyptic number.

11820214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11820214 is a deficient number, since it is larger than the sum of its proper divisors (8776682).

11820214 is a wasteful number, since it uses less digits than its factorization.

11820214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13911.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 11820214 is about 3438.0538099338. The cubic root of 11820214 is about 227.7937372297.

The spelling of 11820214 in words is "eleven million, eight hundred twenty thousand, two hundred fourteen".