328665834 has 36 divisors (see below), whose sum is σ = 828374274. Its totient is φ = 93904272.

The previous prime is 328665829. The next prime is 328665863. The reversal of 328665834 is 438566823.

It is a happy number.

328665834 is a `hidden beast` number, since 3 + 2 + 8 + 66 + 583 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 252714609 + 75951225 = 15897^2 + 8715^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 328665834.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 185437 + ... + 187200.

Almost surely, 2^328665834 is an apocalyptic number.

328665834 is an abundant number, since it is smaller than the sum of its proper divisors (499708440).

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

328665834 is a wasteful number, since it uses less digits than its factorization.

328665834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372659 (or 372649 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 328665834 is about 18129.1432229987. The cubic root of 328665834 is about 690.1097871935.

The spelling of 328665834 in words is "three hundred twenty-eight million, six hundred sixty-five thousand, eight hundred thirty-four".