390398 has 16 divisors (see below), whose sum is σ = 622080. Its totient is φ = 183456.

The previous prime is 390391. The next prime is 390407. The reversal of 390398 is 893093.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3011 + ... + 3137.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2³⁹⁰³⁹⁸ is an apocalyptic number.

390398 is a deficient number, since it is larger than the sum of its proper divisors (231682).

390398 is a wasteful number, since it uses less digits than its factorization.

390398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 390398 is about 624.8183736095. The cubic root of 390398 is about 73.0862806683.

The spelling of 390398 in words is "three hundred ninety thousand, three hundred ninety-eight".