4333040021 has 4 divisors (see below), whose sum is σ = 4333360332. Its totient is φ = 4332719712.

The previous prime is 4333040011. The next prime is 4333040051. The reversal of 4333040021 is 1200403334.

4333040021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1116562225 + 3216477796 = 33415^2 + 56714^2 .

It is a cyclic number.

It is not a de Polignac number, because 4333040021 - 2⁶ = 4333039957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4333039975 and 4333040002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4333040011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138926 + ... + 167231.

It is an arithmetic number, because the mean of its divisors is an integer number (1083340083).

Almost surely, 2^4333040021 is an apocalyptic number.

It is an amenable number.

4333040021 is a deficient number, since it is larger than the sum of its proper divisors (320311).

4333040021 is a wasteful number, since it uses less digits than its factorization.

4333040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320310.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 4333040021 is about 65825.8309556363. The cubic root of 4333040021 is about 1630.2876304992.

Adding to 4333040021 its reverse (1200403334), we get a palindrome (5533443355).

The spelling of 4333040021 in words is "four billion, three hundred thirty-three million, forty thousand, twenty-one".