4220118 has 24 divisors (see below), whose sum is σ = 10450128. Its totient is φ = 1205712.

The previous prime is 4220081. The next prime is 4220137. The reversal of 4220118 is 8110224.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 4220118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16621 + ... + 16872.

It is an arithmetic number, because the mean of its divisors is an integer number (435422).

Almost surely, 2^4220118 is an apocalyptic number.

4220118 is an abundant number, since it is smaller than the sum of its proper divisors (6230010).

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

4220118 is a wasteful number, since it uses less digits than its factorization.

4220118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33508 (or 33505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 4220118 is about 2054.2925789673. The cubic root of 4220118 is about 161.6000651488.

The spelling of 4220118 in words is "four million, two hundred twenty thousand, one hundred eighteen".