4024210021 has 8 divisors (see below), whose sum is σ = 4450893944. Its totient is φ = 3614258880.

The previous prime is 4024209971. The next prime is 4024210049. The reversal of 4024210021 is 1200124204.

It can be written as a sum of positive squares in 4 ways, for example, as 680479396 + 3343730625 = 26086^2 + 57825^2 .

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 4024210021 - 2²⁵ = 3990655589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4024209977 and 4024210004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4024210121) 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, 4182690 + ... + 4183651.

It is an arithmetic number, because the mean of its divisors is an integer number (556361743).

Almost surely, 2^4024210021 is an apocalyptic number.

It is an amenable number.

4024210021 is a deficient number, since it is larger than the sum of its proper divisors (426683923).

4024210021 is a wasteful number, since it uses less digits than its factorization.

4024210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8366391.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4024210021 is about 63436.6614900248. The cubic root of 4024210021 is about 1590.5971967875.

Adding to 4024210021 its reverse (1200124204), we get a palindrome (5224334225).

The spelling of 4024210021 in words is "four billion, twenty-four million, two hundred ten thousand, twenty-one".