42658 has 16 divisors (see below), whose sum is σ = 80064. Its totient is φ = 16560.

The previous prime is 42649. The next prime is 42667. The reversal of 42658 is 85624.

It is an interprime number because it is at equal distance from previous prime (42649) and next prime (42667).

It is an unprimeable number.

42658 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 in 7 ways as a sum of consecutive naturals, for example, 16 + ... + 292.

It is an arithmetic number, because the mean of its divisors is an integer number (5004).

2⁴²⁶⁵⁸ is an apocalyptic number.

42658 is a deficient number, since it is larger than the sum of its proper divisors (37406).

42658 is a wasteful number, since it uses less digits than its factorization.

42658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its digits is 1920, while the sum is 25.

The square root of 42658 is about 206.5381320725. The cubic root of 42658 is about 34.9408524821.

It can be divided in two parts, 426 and 58, that added together give a palindrome (484).

The spelling of 42658 in words is "forty-two thousand, six hundred fifty-eight".