328243399 has 8 divisors (see below), whose sum is σ = 359941392. Its totient is φ = 296855040.

The previous prime is 328243397. The next prime is 328243423. The reversal of 328243399 is 993342823.

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 328243399 - 2¹ = 328243397 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 (328243397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75184 + ... + 79429.

It is an arithmetic number, because the mean of its divisors is an integer number (44992674).

Almost surely, 2^328243399 is an apocalyptic number.

328243399 is a deficient number, since it is larger than the sum of its proper divisors (31697993).

328243399 is a wasteful number, since it uses less digits than its factorization.

328243399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154817.

The product of its digits is 279936, while the sum is 43.

The square root of 328243399 is about 18117.4887608631. The cubic root of 328243399 is about 689.8139938304.

The spelling of 328243399 in words is "three hundred twenty-eight million, two hundred forty-three thousand, three hundred ninety-nine".