324128394 has 12 divisors (see below), whose sum is σ = 702278226. Its totient is φ = 108042792.

The previous prime is 324128393. The next prime is 324128417. The reversal of 324128394 is 493821423.

324128394 is a `hidden beast` number, since 3 + 241 + 28 + 394 = 666.

324128394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 233631225 + 90497169 = 15285^2 + 9513^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (324128393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9003549 + ... + 9003584.

Almost surely, 2^324128394 is an apocalyptic number.

324128394 is an abundant number, since it is smaller than the sum of its proper divisors (378149832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

324128394 is a wasteful number, since it uses less digits than its factorization.

324128394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18007141 (or 18007138 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 324128394 is about 18003.5661467388. The cubic root of 324128394 is about 686.9192585138.

The spelling of 324128394 in words is "three hundred twenty-four million, one hundred twenty-eight thousand, three hundred ninety-four".