342321 has 8 divisors (see below), whose sum is σ = 521664. Its totient is φ = 195600.

The previous prime is 342319. The next prime is 342337. The reversal of 342321 is 123243.

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

It is not a de Polignac number, because 342321 - 2¹ = 342319 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 342321.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342321.

It is not an unprimeable number, because it can be changed into a prime (342341) 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, 8130 + ... + 8171.

It is an arithmetic number, because the mean of its divisors is an integer number (65208).

2³⁴²³²¹ is an apocalyptic number.

It is an amenable number.

342321 is a deficient number, since it is larger than the sum of its proper divisors (179343).

342321 is a wasteful number, since it uses less digits than its factorization.

342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16311.

The product of its digits is 144, while the sum is 15.

The square root of 342321 is about 585.0820455287. The cubic root of 342321 is about 69.9537790108.

Adding to 342321 its reverse (123243), we get a palindrome (465564).

It can be divided in two parts, 3 and 42321, that added together give a palindrome (42324).

The spelling of 342321 in words is "three hundred forty-two thousand, three hundred twenty-one", and thus it is an iban number.