258488 has 16 divisors (see below), whose sum is σ = 492000. Its totient is φ = 127296.

The previous prime is 258487. The next prime is 258491. The reversal of 258488 is 884852.

It is a super-2 number, since 2×258488² = 133632092288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258487) 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 3 ways as a sum of consecutive naturals, for example, 428 + ... + 836.

It is an arithmetic number, because the mean of its divisors is an integer number (30750).

2²⁵⁸⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

258488 is a deficient number, since it is larger than the sum of its proper divisors (233512).

258488 is a wasteful number, since it uses less digits than its factorization.

258488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 490 counting only the distinct ones).

The product of its digits is 20480, while the sum is 35.

The square root of 258488 is about 508.4171515596. The cubic root of 258488 is about 63.7010799886.

The spelling of 258488 in words is "two hundred fifty-eight thousand, four hundred eighty-eight".