258812 has 12 divisors (see below), whose sum is σ = 458640. Its totient is φ = 127776.

The previous prime is 258809. The next prime is 258827. The reversal of 258812 is 218852.

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 258812.

It is an unprimeable number.

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, 8 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (38220).

2²⁵⁸⁸¹² is an apocalyptic number.

It is an amenable number.

258812 is a deficient number, since it is larger than the sum of its proper divisors (199828).

258812 is a wasteful number, since it uses less digits than its factorization.

258812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 818 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 258812 is about 508.7356877594. The cubic root of 258812 is about 63.7276841025.

The spelling of 258812 in words is "two hundred fifty-eight thousand, eight hundred twelve".