218300706 has 48 divisors (see below), whose sum is σ = 539340984. Its totient is φ = 63217152.

The previous prime is 218300699. The next prime is 218300717. The reversal of 218300706 is 607003812.

218300706 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 216354681 + 1946025 = 14709^2 + 1395^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 218300706.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23461 + ... + 31416.

Almost surely, 2^218300706 is an apocalyptic number.

218300706 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

218300706 is an abundant number, since it is smaller than the sum of its proper divisors (321040278).

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

218300706 is a wasteful number, since it uses less digits than its factorization.

218300706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54915 (or 54912 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 218300706 is about 14775.0027411165. The cubic root of 218300706 is about 602.1227642629.

The spelling of 218300706 in words is "two hundred eighteen million, three hundred thousand, seven hundred six".