330440028 has 12 divisors (see below), whose sum is σ = 771026760. Its totient is φ = 110146672.

The previous prime is 330440023. The next prime is 330440029. The reversal of 330440028 is 820044033.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×330440028² = 218381224209281568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330440023) 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, 13768323 + ... + 13768346.

It is an arithmetic number, because the mean of its divisors is an integer number (64252230).

Almost surely, 2^330440028 is an apocalyptic number.

It is an amenable number.

330440028 is an abundant number, since it is smaller than the sum of its proper divisors (440586732).

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

330440028 is a wasteful number, since it uses less digits than its factorization.

330440028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27536676 (or 27536674 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 330440028 is about 18178.0094619846. The cubic root of 330440028 is about 691.3493360486.

The spelling of 330440028 in words is "three hundred thirty million, four hundred forty thousand, twenty-eight".