390303 has 12 divisors (see below), whose sum is σ = 597168. Its totient is φ = 244800.

The previous prime is 390289. The next prime is 390307. The reversal of 390303 is 303093.

It is not a de Polignac number, because 390303 - 2⁹ = 389791 is a prime.

390303 is a modest number, since divided by 303 gives 39 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1123 + ... + 1428.

It is an arithmetic number, because the mean of its divisors is an integer number (49764).

2³⁹⁰³⁰³ is an apocalyptic number.

390303 is a deficient number, since it is larger than the sum of its proper divisors (206865).

390303 is a wasteful number, since it uses less digits than its factorization.

390303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574 (or 2571 counting only the distinct ones).

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

The square root of 390303 is about 624.7423468919. The cubic root of 390303 is about 73.0803518812.

Adding to 390303 its reverse (303093), we get a palindrome (693396).

The spelling of 390303 in words is "three hundred ninety thousand, three hundred three".