258942 has 16 divisors (see below), whose sum is σ = 524160. Its totient is φ = 85272.

The previous prime is 258919. The next prime is 258949. The reversal of 258942 is 249852.

It is a d-powerful number, because it can be written as 2¹⁵ + 5⁷ + 9² + 8³ + 4⁷ + 2¹⁷ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258942.

It is not an unprimeable number, because it can be changed into a prime (258949) by changing a digit.

258942 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, 409 + ... + 827.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2²⁵⁸⁹⁴² is an apocalyptic number.

258942 is an abundant number, since it is smaller than the sum of its proper divisors (265218).

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

258942 is a wasteful number, since it uses less digits than its factorization.

258942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527.

The product of its digits is 5760, while the sum is 30.

The square root of 258942 is about 508.8634394413. The cubic root of 258942 is about 63.7383523511.

The spelling of 258942 in words is "two hundred fifty-eight thousand, nine hundred forty-two".