330257 has 8 divisors (see below), whose sum is σ = 350784. Its totient is φ = 310288.

The previous prime is 330247. The next prime is 330271. The reversal of 330257 is 752033.

330257 is nontrivially palindromic in base 8.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 330257 - 2⁴ = 330241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1823 + ... + 1995.

It is an arithmetic number, because the mean of its divisors is an integer number (43848).

2³³⁰²⁵⁷ is an apocalyptic number.

It is an amenable number.

330257 is a deficient number, since it is larger than the sum of its proper divisors (20527).

330257 is a wasteful number, since it uses less digits than its factorization.

330257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279.

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 330257 is about 574.6799109069. The cubic root of 330257 is about 69.1221668247.

The spelling of 330257 in words is "three hundred thirty thousand, two hundred fifty-seven".