258424 has 8 divisors (see below), whose sum is σ = 484560. Its totient is φ = 129208.

The previous prime is 258421. The next prime is 258437. The reversal of 258424 is 424852.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258421) 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 as a sum of consecutive naturals, namely, 16144 + ... + 16159.

It is an arithmetic number, because the mean of its divisors is an integer number (60570).

2²⁵⁸⁴²⁴ is an apocalyptic number.

It is an amenable number.

258424 is a deficient number, since it is larger than the sum of its proper divisors (226136).

258424 is a wasteful number, since it uses less digits than its factorization.

258424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32309 (or 32305 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 258424 is about 508.3542072217. The cubic root of 258424 is about 63.6958222260.

The spelling of 258424 in words is "two hundred fifty-eight thousand, four hundred twenty-four".