258042 has 16 divisors (see below), whose sum is σ = 534240. Its totient is φ = 82992.

The previous prime is 258031. The next prime is 258061. The reversal of 258042 is 240852.

258042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

258042 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 7 ways as a sum of consecutive naturals, for example, 568 + ... + 915.

It is an arithmetic number, because the mean of its divisors is an integer number (33390).

2²⁵⁸⁰⁴² is an apocalyptic number.

258042 is an abundant number, since it is smaller than the sum of its proper divisors (276198).

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

258042 is a wasteful number, since it uses less digits than its factorization.

258042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 258042 is about 507.9783459952. The cubic root of 258042 is about 63.6644218878.

Adding to 258042 its reverse (240852), we get a palindrome (498894).

The spelling of 258042 in words is "two hundred fifty-eight thousand, forty-two".