218086248 has 16 divisors (see below), whose sum is σ = 545215680. Its totient is φ = 72695408.

The previous prime is 218086247. The next prime is 218086249. The reversal of 218086248 is 842680812.

It is an interprime number because it is at equal distance from previous prime (218086247) and next prime (218086249).

It is a super-2 number, since 2×218086248² = 95123223133435008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (218086241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4543440 + ... + 4543487.

It is an arithmetic number, because the mean of its divisors is an integer number (34075980).

Almost surely, 2^218086248 is an apocalyptic number.

It is an amenable number.

218086248 is an abundant number, since it is smaller than the sum of its proper divisors (327129432).

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

218086248 is a wasteful number, since it uses less digits than its factorization.

218086248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9086936 (or 9086932 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 218086248 is about 14767.7434972307. The cubic root of 218086248 is about 601.9255250893.

The spelling of 218086248 in words is "two hundred eighteen million, eighty-six thousand, two hundred forty-eight".