218354230 has 16 divisors (see below), whose sum is σ = 393368400. Its totient is φ = 87268192.

The previous prime is 218354207. The next prime is 218354231. The reversal of 218354230 is 32453812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218354231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4221 + ... + 21319.

It is an arithmetic number, because the mean of its divisors is an integer number (24585525).

Almost surely, 2^218354230 is an apocalyptic number.

218354230 is a deficient number, since it is larger than the sum of its proper divisors (175014170).

218354230 is a wasteful number, since it uses less digits than its factorization.

218354230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18383.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 218354230 is about 14776.8139326446. The cubic root of 218354230 is about 602.1719706777.

The spelling of 218354230 in words is "two hundred eighteen million, three hundred fifty-four thousand, two hundred thirty".