4022785 has 16 divisors (see below), whose sum is σ = 5241600. Its totient is φ = 2946240.

The previous prime is 4022783. The next prime is 4022803. The reversal of 4022785 is 5872204.

It is not a de Polignac number, because 4022785 - 2¹ = 4022783 is a prime.

4022785 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12780 + ... + 13090.

It is an arithmetic number, because the mean of its divisors is an integer number (327600).

Almost surely, 2^4022785 is an apocalyptic number.

It is an amenable number.

4022785 is a deficient number, since it is larger than the sum of its proper divisors (1218815).

4022785 is a wasteful number, since it uses less digits than its factorization.

4022785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4022785 is about 2005.6881612055. The cubic root of 4022785 is about 159.0409424778.

Adding to 4022785 its reverse (5872204), we get a palindrome (9894989).

The spelling of 4022785 in words is "four million, twenty-two thousand, seven hundred eighty-five".