320930 has 16 divisors (see below), whose sum is σ = 587520. Its totient is φ = 126192.

The previous prime is 320927. The next prime is 320939. The reversal of 320930 is 39023.

320930 = 158² + 159² + ... + 169².

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320899 and 320908.

It is not an unprimeable number, because it can be changed into a prime (320939) 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, 431 + ... + 909.

It is an arithmetic number, because the mean of its divisors is an integer number (36720).

2³²⁰⁹³⁰ is an apocalyptic number.

320930 is a deficient number, since it is larger than the sum of its proper divisors (266590).

320930 is a wasteful number, since it uses less digits than its factorization.

320930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 320930 is about 566.5068402058. The cubic root of 320930 is about 68.4652353475.

Adding to 320930 its reverse (39023), we get a palindrome (359953).

The spelling of 320930 in words is "three hundred twenty thousand, nine hundred thirty".