218300806 has 32 divisors (see below), whose sum is σ = 351008640. Its totient is φ = 101638656.

The previous prime is 218300773. The next prime is 218300821. The reversal of 218300806 is 608003812.

218300806 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198450 + ... + 199546.

It is an arithmetic number, because the mean of its divisors is an integer number (10969020).

Almost surely, 2^218300806 is an apocalyptic number.

218300806 is a deficient number, since it is larger than the sum of its proper divisors (132707834).

218300806 is a wasteful number, since it uses less digits than its factorization.

218300806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 218300806 is about 14775.0061252102. The cubic root of 218300806 is about 602.1228562038.

The spelling of 218300806 in words is "two hundred eighteen million, three hundred thousand, eight hundred six".