218103606 has 72 divisors (see below), whose sum is σ = 568732320. Its totient is φ = 60159456.

The previous prime is 218103601. The next prime is 218103619. The reversal of 218103606 is 606301812.

It is a self number, because there is not a number n which added to its sum of digits gives 218103606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218103601) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21315 + ... + 29841.

It is an arithmetic number, because the mean of its divisors is an integer number (7899060).

Almost surely, 2^218103606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218103606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284366160).

218103606 is an abundant number, since it is smaller than the sum of its proper divisors (350628714).

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

218103606 is a wasteful number, since it uses less digits than its factorization.

218103606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8578 (or 8568 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 218103606 is about 14768.3311853439. The cubic root of 218103606 is about 601.9414942241.

The spelling of 218103606 in words is "two hundred eighteen million, one hundred three thousand, six hundred six".