4220318 has 32 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 1828224.

The previous prime is 4220297. The next prime is 4220323. The reversal of 4220318 is 8130224.

It is a super-2 number, since 2×4220318² = 35622168042248, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4220318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30293 + ... + 30431.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

Almost surely, 2^4220318 is an apocalyptic number.

4220318 is a deficient number, since it is larger than the sum of its proper divisors (3037282).

4220318 is a wasteful number, since it uses less digits than its factorization.

4220318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4220318 is about 2054.3412569483. The cubic root of 4220318 is about 161.6026179607.

The spelling of 4220318 in words is "four million, two hundred twenty thousand, three hundred eighteen".