48218 has 4 divisors (see below), whose sum is σ = 72330. Its totient is φ = 24108.

The previous prime is 48197. The next prime is 48221. The reversal of 48218 is 81284.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38809 + 9409 = 197^2 + 97^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 48193 and 48202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12053 + ... + 12056.

2⁴⁸²¹⁸ is an apocalyptic number.

48218 is a deficient number, since it is larger than the sum of its proper divisors (24112).

48218 is a wasteful number, since it uses less digits than its factorization.

48218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24111.

The product of its digits is 512, while the sum is 23.

The square root of 48218 is about 219.5859740512. The cubic root of 48218 is about 36.3973471480.

The spelling of 48218 in words is "forty-eight thousand, two hundred eighteen".