218848479 has 16 divisors (see below), whose sum is σ = 307543680. Its totient is φ = 138045600.

The previous prime is 218848453. The next prime is 218848481. The reversal of 218848479 is 974848812.

It is not a de Polignac number, because 218848479 - 2¹¹ = 218846431 is a prime.

It is a super-2 number, since 2×218848479² = 95789313521226882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218848079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54904 + ... + 58754.

It is an arithmetic number, because the mean of its divisors is an integer number (19221480).

Almost surely, 2^218848479 is an apocalyptic number.

218848479 is a deficient number, since it is larger than the sum of its proper divisors (88695201).

218848479 is a wasteful number, since it uses less digits than its factorization.

218848479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4870.

The product of its digits is 1032192, while the sum is 51.

The square root of 218848479 is about 14793.5282809748. The cubic root of 218848479 is about 602.6259709168.

The spelling of 218848479 in words is "two hundred eighteen million, eight hundred forty-eight thousand, four hundred seventy-nine".