320630 has 8 divisors (see below), whose sum is σ = 577152. Its totient is φ = 128248.

The previous prime is 320627. The next prime is 320647. The reversal of 320630 is 36023.

320630 is nontrivially palindromic in base 9 and base 13.

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

It is an Ulam number.

It is a Curzon number.

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, 16022 + ... + 16041.

It is an arithmetic number, because the mean of its divisors is an integer number (72144).

2³²⁰⁶³⁰ is an apocalyptic number.

320630 is a deficient number, since it is larger than the sum of its proper divisors (256522).

320630 is a wasteful number, since it uses less digits than its factorization.

320630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32070.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 320630 is about 566.2419977360. The cubic root of 320630 is about 68.4438953108.

Adding to 320630 its reverse (36023), we get a palindrome (356653).

The spelling of 320630 in words is "three hundred twenty thousand, six hundred thirty".