258328 has 24 divisors (see below), whose sum is σ = 564300. Its totient is φ = 110544.

The previous prime is 258319. The next prime is 258329. The reversal of 258328 is 823852.

258328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 2² + 5⁶ + 3¹¹ + 8 + 2¹⁶ + 8 .

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 258296 and 258305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63 + ... + 721.

2²⁵⁸³²⁸ is an apocalyptic number.

258328 is a gapful number since it is divisible by the number (28) 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 258328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282150).

258328 is an abundant number, since it is smaller than the sum of its proper divisors (305972).

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

258328 is a wasteful number, since it uses less digits than its factorization.

258328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 668 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 258328 is about 508.2597760988. The cubic root of 258328 is about 63.6879339542.

The spelling of 258328 in words is "two hundred fifty-eight thousand, three hundred twenty-eight".