342530 has 8 divisors (see below), whose sum is σ = 616572. Its totient is φ = 137008.

The previous prime is 342527. The next prime is 342547. The reversal of 342530 is 35243.

It can be written as a sum of positive squares in 2 ways, for example, as 323761 + 18769 = 569^2 + 137^2 .

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 342499 and 342508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17117 + ... + 17136.

2³⁴²⁵³⁰ is an apocalyptic number.

342530 is a deficient number, since it is larger than the sum of its proper divisors (274042).

342530 is a wasteful number, since it uses less digits than its factorization.

342530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34260.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 342530 is about 585.2606257045. The cubic root of 342530 is about 69.9680125961.

Adding to 342530 its reverse (35243), we get a palindrome (377773).

The spelling of 342530 in words is "three hundred forty-two thousand, five hundred thirty".