342430321 has 4 divisors (see below), whose sum is σ = 342716644. Its totient is φ = 342144000.

The previous prime is 342430313. The next prime is 342430343. The reversal of 342430321 is 123034243.

It is a happy number.

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 5340721 + 337089600 = 2311^2 + 18360^2 .

It is a cyclic number.

It is not a de Polignac number, because 342430321 - 2³ = 342430313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342430292 and 342430301.

It is not an unprimeable number, because it can be changed into a prime (342430351) 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, 141360 + ... + 143761.

It is an arithmetic number, because the mean of its divisors is an integer number (85679161).

Almost surely, 2^342430321 is an apocalyptic number.

It is an amenable number.

342430321 is a deficient number, since it is larger than the sum of its proper divisors (286323).

342430321 is a wasteful number, since it uses less digits than its factorization.

342430321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286322.

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

The square root of 342430321 is about 18504.8728987799. The cubic root of 342430321 is about 699.6122485175.

Adding to 342430321 its reverse (123034243), we get a palindrome (465464564).

The spelling of 342430321 in words is "three hundred forty-two million, four hundred thirty thousand, three hundred twenty-one".