258206 has 8 divisors (see below), whose sum is σ = 417144. Its totient is φ = 119160.

The previous prime is 258197. The next prime is 258211. The reversal of 258206 is 602852.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

258206 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4940 + ... + 4991.

It is an arithmetic number, because the mean of its divisors is an integer number (52143).

2²⁵⁸²⁰⁶ is an apocalyptic number.

258206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

258206 is a deficient number, since it is larger than the sum of its proper divisors (158938).

258206 is a wasteful number, since it uses less digits than its factorization.

258206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9946.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 258206 is about 508.1397445585. The cubic root of 258206 is about 63.6779064550.

It can be divided in two parts, 258 and 206, that added together give a palindrome (464).

The spelling of 258206 in words is "two hundred fifty-eight thousand, two hundred six".