42708 has 12 divisors (see below), whose sum is σ = 99680. Its totient is φ = 14232.

The previous prime is 42703. The next prime is 42709. The reversal of 42708 is 80724.

It is a happy number.

42708 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42701) by changing a digit.

42708 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 in 3 ways as a sum of consecutive naturals, for example, 1768 + ... + 1791.

2⁴²⁷⁰⁸ is an apocalyptic number.

It is an amenable number.

42708 is an abundant number, since it is smaller than the sum of its proper divisors (56972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49840).

42708 is a wasteful number, since it uses less digits than its factorization.

42708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3566 (or 3564 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 42708 is about 206.6591396479. The cubic root of 42708 is about 34.9544986954.

It can be divided in two parts, 4270 and 8, that added together give a triangular number (4278 = T₉₂).

The spelling of 42708 in words is "forty-two thousand, seven hundred eight".