218034330 has 16 divisors (see below), whose sum is σ = 523282464. Its totient is φ = 58142480.

The previous prime is 218034317. The next prime is 218034337. The reversal of 218034330 is 33430812.

It is a self number, because there is not a number n which added to its sum of digits gives 218034330.

It is not an unprimeable number, because it can be changed into a prime (218034337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3633876 + ... + 3633935.

It is an arithmetic number, because the mean of its divisors is an integer number (32705154).

Almost surely, 2^218034330 is an apocalyptic number.

218034330 is an abundant number, since it is smaller than the sum of its proper divisors (305248134).

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

218034330 is a wasteful number, since it uses less digits than its factorization.

218034330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7267821.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 218034330 is about 14765.9855749625. The cubic root of 218034330 is about 601.8777561449.

The spelling of 218034330 in words is "two hundred eighteen million, thirty-four thousand, three hundred thirty".