42934 has 4 divisors (see below), whose sum is σ = 64404. Its totient is φ = 21466.

The previous prime is 42929. The next prime is 42937. The reversal of 42934 is 43924.

It is a semiprime because it is the product of two primes.

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 plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42937) by changing a digit.

42934 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10732 + ... + 10735.

It is an arithmetic number, because the mean of its divisors is an integer number (16101).

2⁴²⁹³⁴ is an apocalyptic number.

42934 is a deficient number, since it is larger than the sum of its proper divisors (21470).

42934 is a wasteful number, since it uses less digits than its factorization.

42934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21469.

The product of its digits is 864, while the sum is 22.

The square root of 42934 is about 207.2052122897. The cubic root of 42934 is about 35.0160470633.

Subtracting 42934 from its reverse (43924), we obtain a triangular number (990 = T₄₄).

The spelling of 42934 in words is "forty-two thousand, nine hundred thirty-four".