218496238 has 8 divisors (see below), whose sum is σ = 344994120. Its totient is φ = 103498200.

The previous prime is 218496233. The next prime is 218496241. The reversal of 218496238 is 832694812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 218496194 and 218496203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218496233) 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 3 ways as a sum of consecutive naturals, for example, 2874913 + ... + 2874988.

It is an arithmetic number, because the mean of its divisors is an integer number (43124265).

Almost surely, 2^218496238 is an apocalyptic number.

218496238 is a deficient number, since it is larger than the sum of its proper divisors (126497882).

218496238 is a wasteful number, since it uses less digits than its factorization.

218496238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749922.

The product of its digits is 165888, while the sum is 43.

The square root of 218496238 is about 14781.6182469985. The cubic root of 218496238 is about 602.3024844548.

The spelling of 218496238 in words is "two hundred eighteen million, four hundred ninety-six thousand, two hundred thirty-eight".