324400133 has 4 divisors (see below), whose sum is σ = 324882828. Its totient is φ = 323917440.

The previous prime is 324400117. The next prime is 324400199. The reversal of 324400133 is 331004423.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37368769 + 287031364 = 6113^2 + 16942^2 .

It is a cyclic number.

It is not a de Polignac number, because 324400133 - 2⁴ = 324400117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320400133) 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, 240338 + ... + 241683.

It is an arithmetic number, because the mean of its divisors is an integer number (81220707).

Almost surely, 2^324400133 is an apocalyptic number.

It is an amenable number.

324400133 is a deficient number, since it is larger than the sum of its proper divisors (482695).

324400133 is an equidigital number, since it uses as much as digits as its factorization.

324400133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482694.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 324400133 is about 18011.1113760367. Note that the first 3 decimals coincide. The cubic root of 324400133 is about 687.1111686910. Note that the first 4 decimals are identical.

Adding to 324400133 its reverse (331004423), we get a palindrome (655404556).

The spelling of 324400133 in words is "three hundred twenty-four million, four hundred thousand, one hundred thirty-three".