218340092 has 6 divisors (see below), whose sum is σ = 382095168. Its totient is φ = 109170044.

The previous prime is 218340041. The next prime is 218340097. The reversal of 218340092 is 290043812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218340097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27292508 + ... + 27292515.

It is an arithmetic number, because the mean of its divisors is an integer number (63682528).

Almost surely, 2^218340092 is an apocalyptic number.

It is an amenable number.

218340092 is a deficient number, since it is larger than the sum of its proper divisors (163755076).

218340092 is a wasteful number, since it uses less digits than its factorization.

218340092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54585027 (or 54585025 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 218340092 is about 14776.3355403158. The cubic root of 218340092 is about 602.1589739200.

The spelling of 218340092 in words is "two hundred eighteen million, three hundred forty thousand, ninety-two".