258040 has 16 divisors (see below), whose sum is σ = 580680. Its totient is φ = 103200.

The previous prime is 258031. The next prime is 258061. The reversal of 258040 is 40852.

258040 = T₉₃ + T₉₄ + ... + T₁₃₂.

It is a happy number.

258040 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 = 257999 and 258017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3186 + ... + 3265.

2²⁵⁸⁰⁴⁰ is an apocalyptic number.

258040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258040 is an abundant number, since it is smaller than the sum of its proper divisors (322640).

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

258040 is a wasteful number, since it uses less digits than its factorization.

258040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6462 (or 6458 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 258040 is about 507.9763774035. The cubic root of 258040 is about 63.6642574066.

Adding to 258040 its reverse (40852), we get a palindrome (298892).

The spelling of 258040 in words is "two hundred fifty-eight thousand, forty".