4418 has 6 divisors (see below), whose sum is σ = 6771. Its totient is φ = 2162.

The previous prime is 4409. The next prime is 4421. The reversal of 4418 is 8144.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2209 + 2209 = 47^2 + 47^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=47.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 4396 and 4405.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 71 + ... + 117.

2⁴⁴¹⁸ is an apocalyptic number.

4418 is a deficient number, since it is larger than the sum of its proper divisors (2353).

4418 is an equidigital number, since it uses as much as digits as its factorization.

4418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 49 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 4418 is about 66.4680374315. The cubic root of 4418 is about 16.4087401360.

Multiplying 4418 by its product of digits (128), we get a square (565504 = 752²).

The spelling of 4418 in words is "four thousand, four hundred eighteen".