42608 has 10 divisors (see below), whose sum is σ = 82584. Its totient is φ = 21296.

The previous prime is 42589. The next prime is 42611. The reversal of 42608 is 80624.

It is a d-powerful number, because it can be written as 4² + 2¹¹ + 6⁵ + 0 + 8⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 42608.

It is a congruent number.

It is an unprimeable number.

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, 1316 + ... + 1347.

2⁴²⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

42608 is a deficient number, since it is larger than the sum of its proper divisors (39976).

42608 is a wasteful number, since it uses less digits than its factorization.

42608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671 (or 2665 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 42608 is about 206.4170535591. The cubic root of 42608 is about 34.9271956015.

Subtracting from 42608 its product of nonzero digits (384), we obtain a palindrome (42224).

The spelling of 42608 in words is "forty-two thousand, six hundred eight".