330489 has 6 divisors (see below), whose sum is σ = 477386. Its totient is φ = 220320.

The previous prime is 330469. The next prime is 330509. The reversal of 330489 is 984033.

It is an interprime number because it is at equal distance from previous prime (330469) and next prime (330509).

It can be written as a sum of positive squares in only one way, i.e., 166464 + 164025 = 408^2 + 405^2 .

It is not a de Polignac number, because 330489 - 2⁸ = 330233 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (330409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18352 + ... + 18369.

2³³⁰⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

330489 is a deficient number, since it is larger than the sum of its proper divisors (146897).

330489 is a wasteful number, since it uses less digits than its factorization.

330489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36727 (or 36724 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 330489 is about 574.8817269665. The cubic root of 330489 is about 69.1383487568.

The spelling of 330489 in words is "three hundred thirty thousand, four hundred eighty-nine".