342434321 has 4 divisors (see below), whose sum is σ = 360457200. Its totient is φ = 324411444.

The previous prime is 342434317. The next prime is 342434369. The reversal of 342434321 is 123434243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 342434321 - 2² = 342434317 is a prime.

It is a super-2 number, since 2×342434321² = 234522528397462082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (342434311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9011411 + ... + 9011448.

It is an arithmetic number, because the mean of its divisors is an integer number (90114300).

Almost surely, 2^342434321 is an apocalyptic number.

It is an amenable number.

342434321 is a deficient number, since it is larger than the sum of its proper divisors (18022879).

342434321 is a wasteful number, since it uses less digits than its factorization.

342434321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18022878.

The product of its digits is 6912, while the sum is 26.

The square root of 342434321 is about 18504.9809781042. The cubic root of 342434321 is about 699.6149726124.

Adding to 342434321 its reverse (123434243), we get a palindrome (465868564).

The spelling of 342434321 in words is "three hundred forty-two million, four hundred thirty-four thousand, three hundred twenty-one".