342730 has 8 divisors (see below), whose sum is σ = 616932. Its totient is φ = 137088.

The previous prime is 342697. The next prime is 342733. The reversal of 342730 is 37243.

342730 is nontrivially palindromic in base 13.

342730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 332929 + 9801 = 577^2 + 99^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 342698 and 342707.

It is not an unprimeable number, because it can be changed into a prime (342733) 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, 17127 + ... + 17146.

2³⁴²⁷³⁰ is an apocalyptic number.

342730 is a deficient number, since it is larger than the sum of its proper divisors (274202).

342730 is a wasteful number, since it uses less digits than its factorization.

342730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34280.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 342730 is about 585.4314648189. The cubic root of 342730 is about 69.9816278315.

Adding to 342730 its reverse (37243), we get a palindrome (379973).

The spelling of 342730 in words is "three hundred forty-two thousand, seven hundred thirty".