324431813 has 8 divisors (see below), whose sum is σ = 338928000. Its totient is φ = 309968208.

The previous prime is 324431801. The next prime is 324431819. The reversal of 324431813 is 318134423.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 324431813 - 2⁴ = 324431797 is a prime.

It is a super-3 number, since 3×324431813³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324431819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13463 + ... + 28811.

It is an arithmetic number, because the mean of its divisors is an integer number (42366000).

Almost surely, 2^324431813 is an apocalyptic number.

It is an amenable number.

324431813 is a deficient number, since it is larger than the sum of its proper divisors (14496187).

324431813 is a wasteful number, since it uses less digits than its factorization.

324431813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16291.

The product of its digits is 6912, while the sum is 29.

The square root of 324431813 is about 18011.9908116788. The cubic root of 324431813 is about 687.1335350744.

The spelling of 324431813 in words is "three hundred twenty-four million, four hundred thirty-one thousand, eight hundred thirteen".