258388 has 12 divisors (see below), whose sum is σ = 487060. Its totient is φ = 119232.

The previous prime is 258373. The next prime is 258389. The reversal of 258388 is 883852.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44944 + 213444 = 212^2 + 462^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 2¹⁶ + 5⁶ + 3¹¹ + 8 + 8 + 8² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2433 + ... + 2536.

2²⁵⁸³⁸⁸ is an apocalyptic number.

It is an amenable number.

258388 is a deficient number, since it is larger than the sum of its proper divisors (228672).

258388 is a wasteful number, since it uses less digits than its factorization.

258388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4986 (or 4984 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 258388 is about 508.3187976064. The cubic root of 258388 is about 63.6928643530.

It can be divided in two parts, 258 and 388, that added together give a palindrome (646).

The spelling of 258388 in words is "two hundred fifty-eight thousand, three hundred eighty-eight".