218124008 has 16 divisors (see below), whose sum is σ = 433040580. Its totient is φ = 102646528.

The previous prime is 218124007. The next prime is 218124017. The reversal of 218124008 is 800421812.

It can be written as a sum of positive squares in 2 ways, for example, as 205578244 + 12545764 = 14338^2 + 3542^2 .

It is not an unprimeable number, because it can be changed into a prime (218124001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801791 + ... + 802062.

Almost surely, 2^218124008 is an apocalyptic number.

It is an amenable number.

218124008 is a deficient number, since it is larger than the sum of its proper divisors (214916572).

218124008 is a wasteful number, since it uses less digits than its factorization.

218124008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603876 (or 1603872 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 218124008 is about 14769.0219039718. The cubic root of 218124008 is about 601.9602627163.

The spelling of 218124008 in words is "two hundred eighteen million, one hundred twenty-four thousand, eight".