324340403 has 4 divisors (see below), whose sum is σ = 324395808. Its totient is φ = 324285000.

The previous prime is 324340351. The next prime is 324340417. The reversal of 324340403 is 304043423.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 324340403 - 2⁶ = 324340339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324340493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17723 + ... + 31028.

It is an arithmetic number, because the mean of its divisors is an integer number (81098952).

Almost surely, 2^324340403 is an apocalyptic number.

324340403 is a deficient number, since it is larger than the sum of its proper divisors (55405).

324340403 is an equidigital number, since it uses as much as digits as its factorization.

324340403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55404.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 324340403 is about 18009.4531566064. The cubic root of 324340403 is about 687.0689947777.

Adding to 324340403 its reverse (304043423), we get a palindrome (628383826).

The spelling of 324340403 in words is "three hundred twenty-four million, three hundred forty thousand, four hundred three".