34642 has 4 divisors (see below), whose sum is σ = 51966. Its totient is φ = 17320.

The previous prime is 34631. The next prime is 34649. The reversal of 34642 is 24643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24643 = 19 ⋅1297.

It can be written as a sum of positive squares in only one way, i.e., 32041 + 2601 = 179^2 + 51^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (34649) by changing a digit.

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 as a sum of consecutive naturals, namely, 8659 + ... + 8662.

2³⁴⁶⁴² is an apocalyptic number.

34642 is a deficient number, since it is larger than the sum of its proper divisors (17324).

34642 is a wasteful number, since it uses less digits than its factorization.

34642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17323.

The product of its digits is 576, while the sum is 19.

The square root of 34642 is about 186.1236148370. The cubic root of 34642 is about 32.5987528849.

Subtracting from 34642 its reverse (24643), we obtain a palindrome (9999).

It can be divided in two parts, 34 and 642, that added together give a palindrome (676).

The spelling of 34642 in words is "thirty-four thousand, six hundred forty-two".