4220208 has 40 divisors (see below), whose sum is σ = 12114800. Its totient is φ = 1406592.

The previous prime is 4220207. The next prime is 4220239. The reversal of 4220208 is 8020224.

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

It is not an unprimeable number, because it can be changed into a prime (4220207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4453 + ... + 5316.

It is an arithmetic number, because the mean of its divisors is an integer number (302870).

Almost surely, 2^4220208 is an apocalyptic number.

4220208 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4220208 is an abundant number, since it is smaller than the sum of its proper divisors (7894592).

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

4220208 is a wasteful number, since it uses less digits than its factorization.

4220208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9786 (or 9774 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 4220208 is about 2054.3144842015. The cubic root of 4220208 is about 161.6012139242.

The spelling of 4220208 in words is "four million, two hundred twenty thousand, two hundred eight".