330399 has 10 divisors (see below), whose sum is σ = 493680. Its totient is φ = 220212.

The previous prime is 330389. The next prime is 330409. The reversal of 330399 is 993033.

It is an interprime number because it is at equal distance from previous prime (330389) and next prime (330409).

It is not a de Polignac number, because 330399 - 2⁴ = 330383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330329) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1959 + ... + 2120.

It is an arithmetic number, because the mean of its divisors is an integer number (49368).

2³³⁰³⁹⁹ is an apocalyptic number.

330399 is a deficient number, since it is larger than the sum of its proper divisors (163281).

330399 is an equidigital number, since it uses as much as digits as its factorization.

330399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091 (or 4082 counting only the distinct ones).

The product of its (nonzero) digits is 2187, while the sum is 27.

The square root of 330399 is about 574.8034446661. The cubic root of 330399 is about 69.1320721825.

It can be divided in two parts, 330 and 399, that added together give a 6-th power (729 = 3⁶).

The spelling of 330399 in words is "three hundred thirty thousand, three hundred ninety-nine".