328185649 has 16 divisors (see below), whose sum is σ = 361817280. Its totient is φ = 295207360.

The previous prime is 328185647. The next prime is 328185661. The reversal of 328185649 is 946581823.

It is a cyclic number.

It is not a de Polignac number, because 328185649 - 2¹ = 328185647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 328185599 and 328185608.

It is not an unprimeable number, because it can be changed into a prime (328185647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582642 + ... + 583204.

It is an arithmetic number, because the mean of its divisors is an integer number (22613580).

Almost surely, 2^328185649 is an apocalyptic number.

It is an amenable number.

328185649 is a deficient number, since it is larger than the sum of its proper divisors (33631631).

328185649 is a wasteful number, since it uses less digits than its factorization.

328185649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040.

The product of its digits is 414720, while the sum is 46.

The square root of 328185649 is about 18115.8949268315. The cubic root of 328185649 is about 689.7735369675.

The spelling of 328185649 in words is "three hundred twenty-eight million, one hundred eighty-five thousand, six hundred forty-nine".