330639 has 8 divisors (see below), whose sum is σ = 443520. Its totient is φ = 219096.

The previous prime is 330623. The next prime is 330641. The reversal of 330639 is 936033.

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

It is not a de Polignac number, because 330639 - 2⁴ = 330623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330679) 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, 742 + ... + 1100.

It is an arithmetic number, because the mean of its divisors is an integer number (55440).

2³³⁰⁶³⁹ is an apocalyptic number.

330639 is a deficient number, since it is larger than the sum of its proper divisors (112881).

330639 is a wasteful number, since it uses less digits than its factorization.

330639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669.

The product of its (nonzero) digits is 1458, while the sum is 24.

The square root of 330639 is about 575.0121737842. The cubic root of 330639 is about 69.1488071823.

It can be divided in two parts, 330 and 639, that added together give a palindrome (969).

The spelling of 330639 in words is "three hundred thirty thousand, six hundred thirty-nine".