330253393 has 2 divisors, whose sum is σ = 330253394. Its totient is φ = 330253392.

The previous prime is 330253381. The next prime is 330253397. The reversal of 330253393 is 393352033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298183824 + 32069569 = 17268^2 + 5663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330253393 is a prime.

It is not a weakly prime, because it can be changed into another prime (330253397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165126696 + 165126697.

It is an arithmetic number, because the mean of its divisors is an integer number (165126697).

Almost surely, 2^330253393 is an apocalyptic number.

It is an amenable number.

330253393 is a deficient number, since it is larger than the sum of its proper divisors (1).

330253393 is an equidigital number, since it uses as much as digits as its factorization.

330253393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 31.

The square root of 330253393 is about 18172.8751990432. The cubic root of 330253393 is about 691.2191517767.

The spelling of 330253393 in words is "three hundred thirty million, two hundred fifty-three thousand, three hundred ninety-three".