390255 has 8 divisors (see below), whose sum is σ = 624432. Its totient is φ = 208128.

The previous prime is 390223. The next prime is 390263. The reversal of 390255 is 552093.

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

It is not a de Polignac number, because 390255 - 2⁵ = 390223 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 390255.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12994 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (78054).

2³⁹⁰²⁵⁵ is an apocalyptic number.

390255 is a deficient number, since it is larger than the sum of its proper divisors (234177).

390255 is a wasteful number, since it uses less digits than its factorization.

390255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26025.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 390255 is about 624.7039298740. The cubic root of 390255 is about 73.0773559176.

The spelling of 390255 in words is "three hundred ninety thousand, two hundred fifty-five".