4224021643 has 8 divisors (see below), whose sum is σ = 4238300160. Its totient is φ = 4209757800.

The previous prime is 4224021629. The next prime is 4224021649. The reversal of 4224021643 is 3461204224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4224021643 - 2²¹ = 4221924491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4224021649) 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 7 ways as a sum of consecutive naturals, for example, 1021446 + ... + 1025572.

It is an arithmetic number, because the mean of its divisors is an integer number (529787520).

Almost surely, 2^4224021643 is an apocalyptic number.

4224021643 is a deficient number, since it is larger than the sum of its proper divisors (14278517).

4224021643 is a wasteful number, since it uses less digits than its factorization.

4224021643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7337.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 4224021643 is about 64992.4737411956. The cubic root of 4224021643 is about 1616.4987691204.

Adding to 4224021643 its reverse (3461204224), we get a palindrome (7685225867).

The spelling of 4224021643 in words is "four billion, two hundred twenty-four million, twenty-one thousand, six hundred forty-three".