330393493 has 4 divisors (see below), whose sum is σ = 330917728. Its totient is φ = 329869260.

The previous prime is 330393449. The next prime is 330393517. The reversal of 330393493 is 394393033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 330393493 - 2¹³ = 330385301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330393403) 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, 261171 + ... + 262432.

It is an arithmetic number, because the mean of its divisors is an integer number (82729432).

Almost surely, 2^330393493 is an apocalyptic number.

It is an amenable number.

330393493 is a deficient number, since it is larger than the sum of its proper divisors (524235).

330393493 is an equidigital number, since it uses as much as digits as its factorization.

330393493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524234.

The product of its (nonzero) digits is 78732, while the sum is 37.

The square root of 330393493 is about 18176.7294362875. The cubic root of 330393493 is about 691.3168808888.

The spelling of 330393493 in words is "three hundred thirty million, three hundred ninety-three thousand, four hundred ninety-three".