448218 has 24 divisors (see below), whose sum is σ = 998868. Its totient is φ = 145152.

The previous prime is 448207. The next prime is 448241. The reversal of 448218 is 812844.

448218 is a `hidden beast` number, since 448 + 218 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 439569 + 8649 = 663^2 + 93^2 .

It is a junction number, because it is equal to n+sod(n) for n = 448191 and 448200.

It is a congruent number.

It is an unprimeable number.

448218 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330 + ... + 1002.

2⁴⁴⁸²¹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 448218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499434).

448218 is an abundant number, since it is smaller than the sum of its proper divisors (550650).

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

448218 is a wasteful number, since it uses less digits than its factorization.

448218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 715 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 448218 is about 669.4908513191. The cubic root of 448218 is about 76.5296565780.

It can be divided in two parts, 448 and 218, that added together give a palindrome (666).

The spelling of 448218 in words is "four hundred forty-eight thousand, two hundred eighteen".