390270 has 16 divisors (see below), whose sum is σ = 936720. Its totient is φ = 104064.

The previous prime is 390263. The next prime is 390281. The reversal of 390270 is 72093.

It is a congruent number.

It is an unprimeable number.

390270 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 6475 + ... + 6534.

It is an arithmetic number, because the mean of its divisors is an integer number (58545).

2³⁹⁰²⁷⁰ is an apocalyptic number.

390270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

390270 is an abundant number, since it is smaller than the sum of its proper divisors (546450).

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

390270 is a wasteful number, since it uses less digits than its factorization.

390270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13019.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 390270 is about 624.7159354459. The cubic root of 390270 is about 73.0782921826.

The spelling of 390270 in words is "three hundred ninety thousand, two hundred seventy".