42604 has 6 divisors (see below), whose sum is σ = 74564. Its totient is φ = 21300.

The previous prime is 42589. The next prime is 42611. The reversal of 42604 is 40624.

42604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5322 + ... + 5329.

2⁴²⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

42604 is a deficient number, since it is larger than the sum of its proper divisors (31960).

42604 is a wasteful number, since it uses less digits than its factorization.

42604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10655 (or 10653 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42604 is about 206.4073642097. The cubic root of 42604 is about 34.9261025896.

It can be divided in two parts, 42 and 604, that added together give a palindrome (646).

The spelling of 42604 in words is "forty-two thousand, six hundred four".