258534 has 24 divisors (see below), whose sum is σ = 572832. Its totient is φ = 84240.

The previous prime is 258527. The next prime is 258539. The reversal of 258534 is 435852.

It is a junction number, because it is equal to n+sod(n) for n = 258498 and 258507.

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 258534.

It is not an unprimeable number, because it can be changed into a prime (258539) by changing a digit.

258534 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 11 ways as a sum of consecutive naturals, for example, 819 + ... + 1089.

It is an arithmetic number, because the mean of its divisors is an integer number (23868).

2²⁵⁸⁵³⁴ is an apocalyptic number.

258534 is an abundant number, since it is smaller than the sum of its proper divisors (314298).

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

258534 is a wasteful number, since it uses less digits than its factorization.

258534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 329 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 258534 is about 508.4623879895. The cubic root of 258534 is about 63.7048584695.

The spelling of 258534 in words is "two hundred fifty-eight thousand, five hundred thirty-four".