258429 has 4 divisors (see below), whose sum is σ = 344576. Its totient is φ = 172284.

The previous prime is 258421. The next prime is 258437. The reversal of 258429 is 924852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (258421) and next prime (258437).

It is not a de Polignac number, because 258429 - 2³ = 258421 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 258396 and 258405.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258429.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43069 + ... + 43074.

It is an arithmetic number, because the mean of its divisors is an integer number (86144).

2²⁵⁸⁴²⁹ is an apocalyptic number.

It is an amenable number.

258429 is a deficient number, since it is larger than the sum of its proper divisors (86147).

258429 is an equidigital number, since it uses as much as digits as its factorization.

258429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86146.

The product of its digits is 5760, while the sum is 30.

The square root of 258429 is about 508.3591250288. The cubic root of 258429 is about 63.6962330200.

The spelling of 258429 in words is "two hundred fifty-eight thousand, four hundred twenty-nine".