4342323021 has 8 divisors (see below), whose sum is σ = 5869076160. Its totient is φ = 2855225952.

The previous prime is 4342323001. The next prime is 4342323077. The reversal of 4342323021 is 1203232434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4342323021 - 2²⁶ = 4275214157 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4342322982 and 4342323000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4342323001) 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, 9913761 + ... + 9914198.

It is an arithmetic number, because the mean of its divisors is an integer number (733634520).

Almost surely, 2^4342323021 is an apocalyptic number.

It is an amenable number.

4342323021 is a deficient number, since it is larger than the sum of its proper divisors (1526753139).

4342323021 is a wasteful number, since it uses less digits than its factorization.

4342323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19828035.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 4342323021 is about 65896.3050633342. The cubic root of 4342323021 is about 1631.4510296603.

Adding to 4342323021 its reverse (1203232434), we get a palindrome (5545555455).

The spelling of 4342323021 in words is "four billion, three hundred forty-two million, three hundred twenty-three thousand, twenty-one".