218450206 has 16 divisors (see below), whose sum is σ = 359541504. Its totient is φ = 98920224.

The previous prime is 218450189. The next prime is 218450207. The reversal of 218450206 is 602054812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218450207) 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, 77886 + ... + 80641.

It is an arithmetic number, because the mean of its divisors is an integer number (22471344).

Almost surely, 2^218450206 is an apocalyptic number.

218450206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

218450206 is a deficient number, since it is larger than the sum of its proper divisors (141091298).

218450206 is a wasteful number, since it uses less digits than its factorization.

218450206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158595.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 218450206 is about 14780.0610959495. The cubic root of 218450206 is about 602.2601845118.

The spelling of 218450206 in words is "two hundred eighteen million, four hundred fifty thousand, two hundred six".