390396 has 12 divisors (see below), whose sum is σ = 910952. Its totient is φ = 130128.

The previous prime is 390391. The next prime is 390407. The reversal of 390396 is 693093.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390391) by changing a digit.

390396 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 3 ways as a sum of consecutive naturals, for example, 16255 + ... + 16278.

2³⁹⁰³⁹⁶ is an apocalyptic number.

It is an amenable number.

390396 is an abundant number, since it is smaller than the sum of its proper divisors (520556).

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

390396 is a wasteful number, since it uses less digits than its factorization.

390396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32540 (or 32538 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 390396 is about 624.8167731423. The cubic root of 390396 is about 73.0861558616.

The spelling of 390396 in words is "three hundred ninety thousand, three hundred ninety-six".