18812206 has 32 divisors (see below), whose sum is σ = 34583040. Its totient is φ = 7498656.

The previous prime is 18812203. The next prime is 18812221. The reversal of 18812206 is 60221881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18812203) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11125 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (1080720).

Almost surely, 2^18812206 is an apocalyptic number.

18812206 is a deficient number, since it is larger than the sum of its proper divisors (15770834).

18812206 is a wasteful number, since it uses less digits than its factorization.

18812206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 18812206 is about 4337.3040013354. The cubic root of 18812206 is about 265.9581123859.

The spelling of 18812206 in words is "eighteen million, eight hundred twelve thousand, two hundred six".