320398 has 8 divisors (see below), whose sum is σ = 517608. Its totient is φ = 147864.

The previous prime is 320389. The next prime is 320401. The reversal of 320398 is 893023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6136 + ... + 6187.

It is an arithmetic number, because the mean of its divisors is an integer number (64701).

2³²⁰³⁹⁸ is an apocalyptic number.

320398 is a deficient number, since it is larger than the sum of its proper divisors (197210).

320398 is a wasteful number, since it uses less digits than its factorization.

320398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12338.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 320398 is about 566.0371012575. The cubic root of 320398 is about 68.4273832199.

The spelling of 320398 in words is "three hundred twenty thousand, three hundred ninety-eight".