4020422424 has 64 divisors (see below), whose sum is σ = 10443859200. Its totient is φ = 1288178304.

The previous prime is 4020422377. The next prime is 4020422459. The reversal of 4020422424 is 4242240204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 4020422394 and 4020422403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145269 + ... + 170715.

It is an arithmetic number, because the mean of its divisors is an integer number (163185300).

Almost surely, 2^4020422424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4020422424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5221929600).

4020422424 is an abundant number, since it is smaller than the sum of its proper divisors (6423436776).

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

4020422424 is a wasteful number, since it uses less digits than its factorization.

4020422424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25712 (or 25708 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 4020422424 is about 63406.8010863188. The cubic root of 4020422424 is about 1590.0980153968.

Adding to 4020422424 its reverse (4242240204), we get a palindrome (8262662628).

The spelling of 4020422424 in words is "four billion, twenty million, four hundred twenty-two thousand, four hundred twenty-four".