342634 has 4 divisors (see below), whose sum is σ = 513954. Its totient is φ = 171316.

The previous prime is 342607. The next prime is 342647. The reversal of 342634 is 436243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436243 = 53 ⋅8231.

It can be written as a sum of positive squares in only one way, i.e., 319225 + 23409 = 565^2 + 153^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 3⁴ + 4⁴ + 6⁶ + 2¹⁵ + 3⁶ + 4⁹ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85657 + ... + 85660.

2³⁴²⁶³⁴ is an apocalyptic number.

342634 is a deficient number, since it is larger than the sum of its proper divisors (171320).

342634 is a wasteful number, since it uses less digits than its factorization.

342634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171319.

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

The square root of 342634 is about 585.3494682666. The cubic root of 342634 is about 69.9750931797.

Adding to 342634 its reverse (436243), we get a palindrome (778877).

The spelling of 342634 in words is "three hundred forty-two thousand, six hundred thirty-four".