218730848 has 24 divisors (see below), whose sum is σ = 492144912. Its totient is φ = 93741696.

The previous prime is 218730803. The next prime is 218730871. The reversal of 218730848 is 848037812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488015 + ... + 488462.

It is an arithmetic number, because the mean of its divisors is an integer number (20506038).

Almost surely, 2^218730848 is an apocalyptic number.

218730848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

218730848 is an abundant number, since it is smaller than the sum of its proper divisors (273414064).

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

218730848 is an equidigital number, since it uses as much as digits as its factorization.

218730848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976494 (or 976486 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 218730848 is about 14789.5519878054. The cubic root of 218730848 is about 602.5179811326.

The spelling of 218730848 in words is "two hundred eighteen million, seven hundred thirty thousand, eight hundred forty-eight".