330040993 has 2 divisors, whose sum is σ = 330040994. Its totient is φ = 330040992.

The previous prime is 330040987. The next prime is 330041029. The reversal of 330040993 is 399040033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265592209 + 64448784 = 16297^2 + 8028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330040993 is a prime.

It is not a weakly prime, because it can be changed into another prime (330043993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165020496 + 165020497.

It is an arithmetic number, because the mean of its divisors is an integer number (165020497).

Almost surely, 2^330040993 is an apocalyptic number.

It is an amenable number.

330040993 is a deficient number, since it is larger than the sum of its proper divisors (1).

330040993 is an equidigital number, since it uses as much as digits as its factorization.

330040993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 330040993 is about 18167.0303847382. The cubic root of 330040993 is about 691.0709358547.

The spelling of 330040993 in words is "three hundred thirty million, forty thousand, nine hundred ninety-three".