258498 has 16 divisors (see below), whose sum is σ = 574560. Its totient is φ = 86148.

The previous prime is 258491. The next prime is 258499. The reversal of 258498 is 894852.

It is not an unprimeable number, because it can be changed into a prime (258491) by changing a digit.

258498 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, 2340 + ... + 2447.

It is an arithmetic number, because the mean of its divisors is an integer number (35910).

2²⁵⁸⁴⁹⁸ is an apocalyptic number.

258498 is an abundant number, since it is smaller than the sum of its proper divisors (316062).

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

258498 is a wasteful number, since it uses less digits than its factorization.

258498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798 (or 4792 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 258498 is about 508.4269859085. The cubic root of 258498 is about 63.7019014356.

The spelling of 258498 in words is "two hundred fifty-eight thousand, four hundred ninety-eight".