4666242021 has 24 divisors (see below), whose sum is σ = 7413969024. Its totient is φ = 2601385920.

The previous prime is 4666242019. The next prime is 4666242037. The reversal of 4666242021 is 1202426664.

It is not a de Polignac number, because 4666242021 - 2¹ = 4666242019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4666242011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381085 + ... + 393138.

It is an arithmetic number, because the mean of its divisors is an integer number (308915376).

Almost surely, 2^4666242021 is an apocalyptic number.

4666242021 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4666242021 is a deficient number, since it is larger than the sum of its proper divisors (2747727003).

4666242021 is a wasteful number, since it uses less digits than its factorization.

4666242021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774281 (or 774274 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 4666242021 is about 68309.8969476605. The cubic root of 4666242021 is about 1671.0486226115.

Adding to 4666242021 its reverse (1202426664), we get a palindrome (5868668685).

The spelling of 4666242021 in words is "four billion, six hundred sixty-six million, two hundred forty-two thousand, twenty-one".