324405 has 28 divisors (see below), whose sum is σ = 590220. Its totient is φ = 171072.

The previous prime is 324403. The next prime is 324419. The reversal of 324405 is 504423.

Added to its reverse (504423) it gives a triangular number (828828 = T₁₂₈₇).

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 88209 + 236196 = 297^2 + 486^2 .

It is not a de Polignac number, because 324405 - 2¹ = 324403 is a prime.

It is a plaindrome in base 12.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324403) 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 27 ways as a sum of consecutive naturals, for example, 3601 + ... + 3689.

2³²⁴⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

324405 is a deficient number, since it is larger than the sum of its proper divisors (265815).

324405 is an frugal number, since it uses more digits than its factorization.

324405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 324405 is about 569.5656239627. The cubic root of 324405 is about 68.7114604934.

Adding to 324405 its sum of digits (18), we get a palindrome (324423).

Adding to 324405 its reverse (504423), we get a palindrome (828828).

It can be divided in two parts, 324 and 405, that added together give a 6-th power (729 = 3⁶).

The spelling of 324405 in words is "three hundred twenty-four thousand, four hundred five".