42734 has 8 divisors (see below), whose sum is σ = 66960. Its totient is φ = 20416.

The previous prime is 42727. The next prime is 42737. The reversal of 42734 is 43724.

It is a happy number.

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

It is a Curzon 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 (42737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419 + ... + 510.

It is an arithmetic number, because the mean of its divisors is an integer number (8370).

2⁴²⁷³⁴ is an apocalyptic number.

42734 is a deficient number, since it is larger than the sum of its proper divisors (24226).

42734 is a wasteful number, since it uses less digits than its factorization.

42734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954.

The product of its digits is 672, while the sum is 20.

The square root of 42734 is about 206.7220355937. The cubic root of 42734 is about 34.9615905174.

Subtracting 42734 from its reverse (43724), we obtain a triangular number (990 = T₄₄).

The spelling of 42734 in words is "forty-two thousand, seven hundred thirty-four".