4222785 has 32 divisors (see below), whose sum is σ = 7805952. Its totient is φ = 1909440.

The previous prime is 4222781. The next prime is 4222793. The reversal of 4222785 is 5872224.

4222785 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 4222785 - 2² = 4222781 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

4222785 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4222781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13602 + ... + 13908.

It is an arithmetic number, because the mean of its divisors is an integer number (243936).

Almost surely, 2^4222785 is an apocalyptic number.

It is an amenable number.

4222785 is a deficient number, since it is larger than the sum of its proper divisors (3583167).

4222785 is a wasteful number, since it uses less digits than its factorization.

4222785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453.

The product of its digits is 8960, while the sum is 30.

The square root of 4222785 is about 2054.9416050097. The cubic root of 4222785 is about 161.6341002646.

The spelling of 4222785 in words is "four million, two hundred twenty-two thousand, seven hundred eighty-five".