328316649 has 8 divisors (see below), whose sum is σ = 437930112. Its totient is φ = 218790480.

The previous prime is 328316647. The next prime is 328316657. The reversal of 328316649 is 946613823.

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

It is not a de Polignac number, because 328316649 - 2¹ = 328316647 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 328316649.

It is not an unprimeable number, because it can be changed into a prime (328316647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12474 + ... + 28499.

It is an arithmetic number, because the mean of its divisors is an integer number (54741264).

Almost surely, 2^328316649 is an apocalyptic number.

It is an amenable number.

328316649 is a deficient number, since it is larger than the sum of its proper divisors (109613463).

328316649 is a wasteful number, since it uses less digits than its factorization.

328316649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43647.

The product of its digits is 186624, while the sum is 42.

The square root of 328316649 is about 18119.5101754987. The cubic root of 328316649 is about 689.8653024193.

The spelling of 328316649 in words is "three hundred twenty-eight million, three hundred sixteen thousand, six hundred forty-nine".