328730019 has 8 divisors (see below), whose sum is σ = 438840000. Its totient is φ = 218886696.

The previous prime is 328730011. The next prime is 328730029. The reversal of 328730019 is 910037823.

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

It is not a de Polignac number, because 328730019 - 2³ = 328730011 is a prime.

It is a super-2 number, since 2×328730019² = 216126850783480722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (328730011) 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, 63769 + ... + 68730.

It is an arithmetic number, because the mean of its divisors is an integer number (54855000).

Almost surely, 2^328730019 is an apocalyptic number.

328730019 is a deficient number, since it is larger than the sum of its proper divisors (110109981).

328730019 is a wasteful number, since it uses less digits than its factorization.

328730019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133329.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 328730019 is about 18130.9133526141. The cubic root of 328730019 is about 690.1547080107.

The spelling of 328730019 in words is "three hundred twenty-eight million, seven hundred thirty thousand, nineteen".