258494 has 8 divisors (see below), whose sum is σ = 389928. Its totient is φ = 128520.

The previous prime is 258491. The next prime is 258499. The reversal of 258494 is 494852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2¹⁷ + 5⁷ + 4³ + 8⁵ + 9² + 4⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 258494.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404 + ... + 824.

It is an arithmetic number, because the mean of its divisors is an integer number (48741).

2²⁵⁸⁴⁹⁴ is an apocalyptic number.

258494 is a deficient number, since it is larger than the sum of its proper divisors (131434).

258494 is a wasteful number, since it uses less digits than its factorization.

258494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730.

The product of its digits is 11520, while the sum is 32.

The square root of 258494 is about 508.4230521918. The cubic root of 258494 is about 63.7015728594.

The spelling of 258494 in words is "two hundred fifty-eight thousand, four hundred ninety-four".