218342704 has 10 divisors (see below), whose sum is σ = 423039020. Its totient is φ = 109171344.

The previous prime is 218342701. The next prime is 218342767. The reversal of 218342704 is 407243812.

It is not an unprimeable number, because it can be changed into a prime (218342701) 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 as a sum of consecutive naturals, namely, 6823194 + ... + 6823225.

It is an arithmetic number, because the mean of its divisors is an integer number (42303902).

Almost surely, 2^218342704 is an apocalyptic number.

It is an amenable number.

218342704 is a deficient number, since it is larger than the sum of its proper divisors (204696316).

218342704 is a wasteful number, since it uses less digits than its factorization.

218342704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13646427 (or 13646421 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 218342704 is about 14776.4239246172. The cubic root of 218342704 is about 602.1613751173.

The spelling of 218342704 in words is "two hundred eighteen million, three hundred forty-two thousand, seven hundred four".