218971848 has 32 divisors (see below), whose sum is σ = 565090560. Its totient is φ = 70635840.

The previous prime is 218971847. The next prime is 218971853. The reversal of 218971848 is 848179812.

218971848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 218971797 and 218971806.

It is not an unprimeable number, because it can be changed into a prime (218971847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146415 + ... + 147902.

It is an arithmetic number, because the mean of its divisors is an integer number (17659080).

Almost surely, 2^218971848 is an apocalyptic number.

It is an amenable number.

218971848 is an abundant number, since it is smaller than the sum of its proper divisors (346118712).

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

218971848 is a wasteful number, since it uses less digits than its factorization.

218971848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294357 (or 294353 counting only the distinct ones).

The product of its digits is 258048, while the sum is 48.

The square root of 218971848 is about 14797.6973884453. The cubic root of 218971848 is about 602.7391868401.

The spelling of 218971848 in words is "two hundred eighteen million, nine hundred seventy-one thousand, eight hundred forty-eight".