4220442423 has 36 divisors (see below), whose sum is σ = 6486652120. Its totient is φ = 2643722496.

The previous prime is 4220442403. The next prime is 4220442427. The reversal of 4220442423 is 3242440224.

It is not a de Polignac number, because 4220442423 - 2¹⁰ = 4220441399 is a prime.

It is a super-2 number, since 2×4220442423² = 35624268491716221858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220442427) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2358213 + ... + 2360001.

Almost surely, 2^4220442423 is an apocalyptic number.

4220442423 is a deficient number, since it is larger than the sum of its proper divisors (2266209697).

4220442423 is a wasteful number, since it uses less digits than its factorization.

4220442423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

The square root of 4220442423 is about 64964.9322557947. The cubic root of 4220442423 is about 1616.0420606261.

Adding to 4220442423 its reverse (3242440224), we get a palindrome (7462882647).

The spelling of 4220442423 in words is "four billion, two hundred twenty million, four hundred forty-two thousand, four hundred twenty-three".