4234330021 has 16 divisors (see below), whose sum is σ = 4452876288. Its totient is φ = 4021441200.

The previous prime is 4234330019. The next prime is 4234330069. The reversal of 4234330021 is 1200334324.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4234330021 - 2¹ = 4234330019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4234329974 and 4234330001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4234360021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486510 + ... + 495136.

It is an arithmetic number, because the mean of its divisors is an integer number (278304768).

Almost surely, 2^4234330021 is an apocalyptic number.

It is an amenable number.

4234330021 is a deficient number, since it is larger than the sum of its proper divisors (218546267).

4234330021 is a wasteful number, since it uses less digits than its factorization.

4234330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8952.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 4234330021 is about 65071.7298141059. The cubic root of 4234330021 is about 1617.8126783770.

Adding to 4234330021 its reverse (1200334324), we get a palindrome (5434664345).

The spelling of 4234330021 in words is "four billion, two hundred thirty-four million, three hundred thirty thousand, twenty-one".