4220855 has 8 divisors (see below), whose sum is σ = 5082912. Its totient is φ = 3364768.

The previous prime is 4220851. The next prime is 4220857. The reversal of 4220855 is 5580224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4220855 - 2² = 4220851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254 + ... + 2916.

It is an arithmetic number, because the mean of its divisors is an integer number (635364).

Almost surely, 2^4220855 is an apocalyptic number.

4220855 is a deficient number, since it is larger than the sum of its proper divisors (862057).

4220855 is a wasteful number, since it uses less digits than its factorization.

4220855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 4220855 is about 2054.4719516216. The cubic root of 4220855 is about 161.6094718617.

The spelling of 4220855 in words is "four million, two hundred twenty thousand, eight hundred fifty-five".