342542 has 4 divisors (see below), whose sum is σ = 513816. Its totient is φ = 171270.

The previous prime is 342527. The next prime is 342547. The reversal of 342542 is 245243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245243 = 103 ⋅2381.

It is a d-powerful number, because it can be written as 3⁴ + 4² + 5⁷ + 2⁷ + 4⁹ + 2¹¹ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342542.

It is not an unprimeable number, because it can be changed into a prime (342547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85634 + ... + 85637.

It is an arithmetic number, because the mean of its divisors is an integer number (128454).

2³⁴²⁵⁴² is an apocalyptic number.

342542 is a deficient number, since it is larger than the sum of its proper divisors (171274).

342542 is a wasteful number, since it uses less digits than its factorization.

342542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171273.

The product of its digits is 960, while the sum is 20.

The square root of 342542 is about 585.2708774576. The cubic root of 342542 is about 69.9688296596.

Adding to 342542 its reverse (245243), we get a palindrome (587785).

The spelling of 342542 in words is "three hundred forty-two thousand, five hundred forty-two".