258369 has 8 divisors (see below), whose sum is σ = 349632. Its totient is φ = 169680.

The previous prime is 258353. The next prime is 258373. The reversal of 258369 is 963852.

It is a happy number.

258369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 258369 - 2⁴ = 258353 is a prime.

It is a super-2 number, since 2×258369² = 133509080322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258369.

It is not an unprimeable number, because it can be changed into a prime (258319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394 + ... + 819.

It is an arithmetic number, because the mean of its divisors is an integer number (43704).

2²⁵⁸³⁶⁹ is an apocalyptic number.

It is an amenable number.

258369 is a deficient number, since it is larger than the sum of its proper divisors (91263).

258369 is a wasteful number, since it uses less digits than its factorization.

258369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287.

The product of its digits is 12960, while the sum is 33.

The square root of 258369 is about 508.3001082038. The cubic root of 258369 is about 63.6913031427.

Adding to 258369 its reverse (963852), we get a palindrome (1222221).

The spelling of 258369 in words is "two hundred fifty-eight thousand, three hundred sixty-nine".