4030243021 has 8 divisors (see below), whose sum is σ = 4606809984. Its totient is φ = 3453880560.

The previous prime is 4030243003. The next prime is 4030243033. The reversal of 4030243021 is 1203420304.

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 4030243021 - 2¹⁹ = 4029718733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4030243021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030243081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6265 + ... + 89998.

It is an arithmetic number, because the mean of its divisors is an integer number (575851248).

Almost surely, 2^4030243021 is an apocalyptic number.

It is an amenable number.

4030243021 is a deficient number, since it is larger than the sum of its proper divisors (576566963).

4030243021 is an equidigital number, since it uses as much as digits as its factorization.

4030243021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102251.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 4030243021 is about 63484.1950488466. The cubic root of 4030243021 is about 1591.3916617406.

Adding to 4030243021 its reverse (1203420304), we get a palindrome (5233663325).

The spelling of 4030243021 in words is "four billion, thirty million, two hundred forty-three thousand, twenty-one".