218333130 has 32 divisors (see below), whose sum is σ = 526673664. Its totient is φ = 57925056.

The previous prime is 218333113. The next prime is 218333131. The reversal of 218333130 is 31333812.

218333130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 218333130.

It is not an unprimeable number, because it can be changed into a prime (218333131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12562 + ... + 24381.

It is an arithmetic number, because the mean of its divisors is an integer number (16458552).

Almost surely, 2^218333130 is an apocalyptic number.

218333130 is an abundant number, since it is smaller than the sum of its proper divisors (308340534).

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

218333130 is a wasteful number, since it uses less digits than its factorization.

218333130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37150.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 218333130 is about 14776.0999590555. The cubic root of 218333130 is about 602.1525736977.

Adding to 218333130 its reverse (31333812), we get a palindrome (249666942).

The spelling of 218333130 in words is "two hundred eighteen million, three hundred thirty-three thousand, one hundred thirty".