330242581 has 2 divisors, whose sum is σ = 330242582. Its totient is φ = 330242580.

The previous prime is 330242569. The next prime is 330242603. The reversal of 330242581 is 185242033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 321628356 + 8614225 = 17934^2 + 2935^2 .

It is a cyclic number.

It is not a de Polignac number, because 330242581 - 2⁷ = 330242453 is a prime.

It is a super-2 number, since 2×330242581² = 218120324611083122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330249581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165121290 + 165121291.

It is an arithmetic number, because the mean of its divisors is an integer number (165121291).

Almost surely, 2^330242581 is an apocalyptic number.

It is an amenable number.

330242581 is a deficient number, since it is larger than the sum of its proper divisors (1).

330242581 is an equidigital number, since it uses as much as digits as its factorization.

330242581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 330242581 is about 18172.5777202905. The cubic root of 330242581 is about 691.2116085355.

The spelling of 330242581 in words is "three hundred thirty million, two hundred forty-two thousand, five hundred eighty-one".