328005019 has 4 divisors (see below), whose sum is σ = 332624880. Its totient is φ = 323385160.

The previous prime is 328005011. The next prime is 328005053. The reversal of 328005019 is 910500823.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 328005019 - 2³ = 328005011 is a prime.

It is a super-2 number, since 2×328005019² = 215174584978380722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328005011) 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 3 ways as a sum of consecutive naturals, for example, 2309824 + ... + 2309965.

It is an arithmetic number, because the mean of its divisors is an integer number (83156220).

Almost surely, 2^328005019 is an apocalyptic number.

328005019 is a deficient number, since it is larger than the sum of its proper divisors (4619861).

328005019 is an equidigital number, since it uses as much as digits as its factorization.

328005019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619860.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 328005019 is about 18110.9088397021. The cubic root of 328005019 is about 689.6469656607.

The spelling of 328005019 in words is "three hundred twenty-eight million, five thousand, nineteen".