390012 has 24 divisors (see below), whose sum is σ = 1040256. Its totient is φ = 111408.

The previous prime is 390001. The next prime is 390043. The reversal of 390012 is 210093.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 389973 and 390000.

It is a congruent number.

It is an unprimeable number.

390012 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, 2238 + ... + 2405.

It is an arithmetic number, because the mean of its divisors is an integer number (43344).

2³⁹⁰⁰¹² is an apocalyptic number.

It is an amenable number.

390012 is an abundant number, since it is smaller than the sum of its proper divisors (650244).

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

390012 is a wasteful number, since it uses less digits than its factorization.

390012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657 (or 4655 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 390012 is about 624.5094074552. The cubic root of 390012 is about 73.0621850810.

The spelling of 390012 in words is "three hundred ninety thousand, twelve".