324991916 has 12 divisors (see below), whose sum is σ = 570263232. Its totient is φ = 162059568.

The previous prime is 324991913. The next prime is 324991937. The reversal of 324991916 is 619199423.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (324991913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107420 + ... + 110403.

It is an arithmetic number, because the mean of its divisors is an integer number (47521936).

Almost surely, 2^324991916 is an apocalyptic number.

It is an amenable number.

324991916 is a deficient number, since it is larger than the sum of its proper divisors (245271316).

324991916 is a wasteful number, since it uses less digits than its factorization.

324991916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218200 (or 218198 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 324991916 is about 18027.5321661064. The cubic root of 324991916 is about 687.5287329479.

The spelling of 324991916 in words is "three hundred twenty-four million, nine hundred ninety-one thousand, nine hundred sixteen".