342030321 has 24 divisors (see below), whose sum is σ = 515647080. Its totient is φ = 218190336.

The previous prime is 342030319. The next prime is 342030383. The reversal of 342030321 is 123030243.

342030321 is a `hidden beast` number, since 342 + 0 + 3 + 0 + 321 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 28740321 + 313290000 = 5361^2 + 17700^2 .

It is not a de Polignac number, because 342030321 - 2¹ = 342030319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 342030294 and 342030303.

It is not an unprimeable number, because it can be changed into a prime (342020321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23695 + ... + 35291.

It is an arithmetic number, because the mean of its divisors is an integer number (21485295).

Almost surely, 2^342030321 is an apocalyptic number.

It is an amenable number.

342030321 is a deficient number, since it is larger than the sum of its proper divisors (173616759).

342030321 is a wasteful number, since it uses less digits than its factorization.

342030321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11745 (or 11742 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 342030321 is about 18494.0617766893. The cubic root of 342030321 is about 699.3397318261.

Adding to 342030321 its reverse (123030243), we get a palindrome (465060564).

The spelling of 342030321 in words is "three hundred forty-two million, thirty thousand, three hundred twenty-one".