42308 has 12 divisors (see below), whose sum is σ = 84672. Its totient is φ = 18120.

The previous prime is 42307. The next prime is 42323. The reversal of 42308 is 80324.

42308 is an admirable number.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42308.

It is not an unprimeable number, because it can be changed into a prime (42307) 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, 728 + ... + 783.

It is an arithmetic number, because the mean of its divisors is an integer number (7056).

2⁴²³⁰⁸ is an apocalyptic number.

It is an amenable number.

42308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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 (42336).

42308 is a wasteful number, since it uses less digits than its factorization.

42308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522 (or 1520 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 42308 is about 205.6890857581. The cubic root of 42308 is about 34.8450291278.

The spelling of 42308 in words is "forty-two thousand, three hundred eight".