390330 has 24 divisors (see below), whose sum is σ = 1015092. Its totient is φ = 104064.

The previous prime is 390323. The next prime is 390343. The reversal of 390330 is 33093.

390330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 328329 + 62001 = 573^2 + 249^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2079 + ... + 2258.

2³⁹⁰³³⁰ is an apocalyptic number.

390330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

390330 is an abundant number, since it is smaller than the sum of its proper divisors (624762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390330 is a wasteful number, since it uses less digits than its factorization.

390330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4350 (or 4347 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

The square root of 390330 is about 624.7639554264. The cubic root of 390330 is about 73.0820370027.

The spelling of 390330 in words is "three hundred ninety thousand, three hundred thirty".