218003080 has 32 divisors (see below), whose sum is σ = 490944600. Its totient is φ = 87123456.

The previous prime is 218003047. The next prime is 218003083. The reversal of 218003080 is 80300812.

It can be written as a sum of positive squares in 4 ways, for example, as 74338884 + 143664196 = 8622^2 + 11986^2 .

It is not an unprimeable number, because it can be changed into a prime (218003083) 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, 68566 + ... + 71674.

Almost surely, 2^218003080 is an apocalyptic number.

218003080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218003080 is an abundant number, since it is smaller than the sum of its proper divisors (272941520).

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

218003080 is a wasteful number, since it uses less digits than its factorization.

218003080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4873 (or 4869 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 218003080 is about 14764.9273618261. The cubic root of 218003080 is about 601.8489998498.

Adding to 218003080 its reverse (80300812), we get a palindrome (298303892).

The spelling of 218003080 in words is "two hundred eighteen million, three thousand, eighty".