328309490 has 8 divisors (see below), whose sum is σ = 590957100. Its totient is φ = 131323792.

The previous prime is 328309483. The next prime is 328309517. The reversal of 328309490 is 94903823.

It can be written as a sum of positive squares in 2 ways, for example, as 272613121 + 55696369 = 16511^2 + 7463^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16415465 + ... + 16415484.

Almost surely, 2^328309490 is an apocalyptic number.

328309490 is a deficient number, since it is larger than the sum of its proper divisors (262647610).

328309490 is a wasteful number, since it uses less digits than its factorization.

328309490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32830956.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 328309490 is about 18119.3126249314. The cubic root of 328309490 is about 689.8602881731.

The spelling of 328309490 in words is "three hundred twenty-eight million, three hundred nine thousand, four hundred ninety".