4143424021 has 16 divisors (see below), whose sum is σ = 4677761088. Its totient is φ = 3636921600.

The previous prime is 4143424003. The next prime is 4143424037. The reversal of 4143424021 is 1204243414.

It is a cyclic number.

It is not a de Polignac number, because 4143424021 - 2¹⁷ = 4143292949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4143424001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14461 + ... + 92173.

It is an arithmetic number, because the mean of its divisors is an integer number (292360068).

Almost surely, 2^4143424021 is an apocalyptic number.

It is an amenable number.

4143424021 is a deficient number, since it is larger than the sum of its proper divisors (534337067).

4143424021 is a wasteful number, since it uses less digits than its factorization.

4143424021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77892.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 4143424021 is about 64369.4339030568. The cubic root of 4143424021 is about 1606.1513231916.

Adding to 4143424021 its reverse (1204243414), we get a palindrome (5347667435).

The spelling of 4143424021 in words is "four billion, one hundred forty-three million, four hundred twenty-four thousand, twenty-one".