324168399 has 30 divisors (see below), whose sum is σ = 491629776. Its totient is φ = 212868000.

The previous prime is 324168379. The next prime is 324168407. The reversal of 324168399 is 993861423.

It is a happy number.

It is not a de Polignac number, because 324168399 - 2¹¹ = 324166351 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

324168399 is a modest number, since divided by 168399 gives 324 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324168379) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 431274 + ... + 432024.

Almost surely, 2^324168399 is an apocalyptic number.

324168399 is a deficient number, since it is larger than the sum of its proper divisors (167461377).

324168399 is an frugal number, since it uses more digits than its factorization.

324168399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 827 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 324168399 is about 18004.6771423428. The cubic root of 324168399 is about 686.9475179679.

The spelling of 324168399 in words is "three hundred twenty-four million, one hundred sixty-eight thousand, three hundred ninety-nine".