258860 has 36 divisors (see below), whose sum is σ = 636048. Its totient is φ = 86688.

The previous prime is 258847. The next prime is 258871. The reversal of 258860 is 68852.

It is a happy number.

It is an unprimeable 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 11 ways as a sum of consecutive naturals, for example, 5999 + ... + 6041.

It is an arithmetic number, because the mean of its divisors is an integer number (17668).

2²⁵⁸⁸⁶⁰ is an apocalyptic number.

258860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318024).

258860 is an abundant number, since it is smaller than the sum of its proper divisors (377188).

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

258860 is a wasteful number, since it uses less digits than its factorization.

258860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 258860 is about 508.7828613466. The cubic root of 258860 is about 63.7316235641.

The spelling of 258860 in words is "two hundred fifty-eight thousand, eight hundred sixty".