330728011 has 4 divisors (see below), whose sum is σ = 335386224. Its totient is φ = 326069800.

The previous prime is 330727997. The next prime is 330728029. The reversal of 330728011 is 110827033.

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 330728011 - 2⁷ = 330727883 is a prime.

It is a super-2 number, since 2×330728011² = 218762034520032242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330728711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2329000 + ... + 2329141.

It is an arithmetic number, because the mean of its divisors is an integer number (83846556).

Almost surely, 2^330728011 is an apocalyptic number.

330728011 is a deficient number, since it is larger than the sum of its proper divisors (4658213).

330728011 is an equidigital number, since it uses as much as digits as its factorization.

330728011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658212.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 330728011 is about 18185.9289287075. The cubic root of 330728011 is about 691.5501178631.

The spelling of 330728011 in words is "three hundred thirty million, seven hundred twenty-eight thousand, eleven".