218485368 has 48 divisors (see below), whose sum is σ = 593892000. Its totient is φ = 72562560.

The previous prime is 218485361. The next prime is 218485369. The reversal of 218485368 is 863584812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218485361) 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 11 ways as a sum of consecutive naturals, for example, 14833 + ... + 25631.

It is an arithmetic number, because the mean of its divisors is an integer number (12372750).

Almost surely, 2^218485368 is an apocalyptic number.

It is an amenable number.

218485368 is an abundant number, since it is smaller than the sum of its proper divisors (375406632).

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

218485368 is a wasteful number, since it uses less digits than its factorization.

218485368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11092 (or 11085 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 218485368 is about 14781.2505560254. The cubic root of 218485368 is about 602.2924962788.

The spelling of 218485368 in words is "two hundred eighteen million, four hundred eighty-five thousand, three hundred sixty-eight".