4418220 has 24 divisors (see below), whose sum is σ = 12371184. Its totient is φ = 1178176.

The previous prime is 4418209. The next prime is 4418221. The reversal of 4418220 is 228144.

4418220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4418221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36759 + ... + 36878.

It is an arithmetic number, because the mean of its divisors is an integer number (515466).

Almost surely, 2^4418220 is an apocalyptic number.

It is an amenable number.

4418220 is an abundant number, since it is smaller than the sum of its proper divisors (7952964).

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

4418220 is a wasteful number, since it uses less digits than its factorization.

4418220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73649 (or 73647 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4418220 is about 2101.9562317042. The cubic root of 4418220 is about 164.0901249627.

The spelling of 4418220 in words is "four million, four hundred eighteen thousand, two hundred twenty".