330681 has 16 divisors (see below), whose sum is σ = 486080. Its totient is φ = 198720.

The previous prime is 330679. The next prime is 330683. The reversal of 330681 is 186033.

It is an interprime number because it is at equal distance from previous prime (330679) and next prime (330683).

It is not a de Polignac number, because 330681 - 2¹ = 330679 is a prime.

It is a super-2 number, since 2×330681² = 218699847522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 330681.

It is not an unprimeable number, because it can be changed into a prime (330683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2310 + ... + 2448.

It is an arithmetic number, because the mean of its divisors is an integer number (30380).

2³³⁰⁶⁸¹ is an apocalyptic number.

It is an amenable number.

330681 is a deficient number, since it is larger than the sum of its proper divisors (155399).

330681 is a wasteful number, since it uses less digits than its factorization.

330681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 330681 is about 575.0486935904. The cubic root of 330681 is about 69.1517349746.

The spelling of 330681 in words is "three hundred thirty thousand, six hundred eighty-one".