258738 has 16 divisors (see below), whose sum is σ = 535680. Its totient is φ = 83216.

The previous prime is 258737. The next prime is 258743. The reversal of 258738 is 837852.

258738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 258699 and 258708.

It is not an unprimeable number, because it can be changed into a prime (258733) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 570 + ... + 917.

It is an arithmetic number, because the mean of its divisors is an integer number (33480).

2²⁵⁸⁷³⁸ is an apocalyptic number.

258738 is an abundant number, since it is smaller than the sum of its proper divisors (276942).

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

258738 is a wasteful number, since it uses less digits than its factorization.

258738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521.

The product of its digits is 13440, while the sum is 33.

The square root of 258738 is about 508.6629532411. The cubic root of 258738 is about 63.7216098116.

The spelling of 258738 in words is "two hundred fifty-eight thousand, seven hundred thirty-eight".