4002143424 has 28 divisors (see below), whose sum is σ = 10589004984. Its totient is φ = 1334047744.

The previous prime is 4002143423. The next prime is 4002143437. The reversal of 4002143424 is 4243412004.

It is a happy number.

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 = 4002143394 and 4002143403.

It is not an unprimeable number, because it can be changed into a prime (4002143423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10422057 + ... + 10422440.

Almost surely, 2^4002143424 is an apocalyptic number.

It is an amenable number.

4002143424 is an abundant number, since it is smaller than the sum of its proper divisors (6586861560).

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

4002143424 is a wasteful number, since it uses less digits than its factorization.

4002143424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20844512 (or 20844502 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4002143424 is about 63262.4961885002. The cubic root of 4002143424 is about 1587.6845407972.

Adding to 4002143424 its reverse (4243412004), we get a palindrome (8245555428).

The spelling of 4002143424 in words is "four billion, two million, one hundred forty-three thousand, four hundred twenty-four".