390008 has 8 divisors (see below), whose sum is σ = 731280. Its totient is φ = 195000.

The previous prime is 390001. The next prime is 390043. The reversal of 390008 is 800093.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390001) by changing a digit.

390008 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24368 + ... + 24383.

It is an arithmetic number, because the mean of its divisors is an integer number (91410).

2³⁹⁰⁰⁰⁸ is an apocalyptic number.

It is an amenable number.

390008 is a deficient number, since it is larger than the sum of its proper divisors (341272).

390008 is a wasteful number, since it uses less digits than its factorization.

390008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48757 (or 48753 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 390008 is about 624.5062049331. The cubic root of 390008 is about 73.0619353026.

The spelling of 390008 in words is "three hundred ninety thousand, eight".