321340304 has 10 divisors (see below), whose sum is σ = 622596870. Its totient is φ = 160670144.

The previous prime is 321340303. The next prime is 321340309. The reversal of 321340304 is 403043123.

321340304 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 287234704 + 34105600 = 16948^2 + 5840^2 .

It is not an unprimeable number, because it can be changed into a prime (321340303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041869 + ... + 10041900.

It is an arithmetic number, because the mean of its divisors is an integer number (62259687).

Almost surely, 2^321340304 is an apocalyptic number.

It is an amenable number.

321340304 is a deficient number, since it is larger than the sum of its proper divisors (301256566).

321340304 is a wasteful number, since it uses less digits than its factorization.

321340304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20083777 (or 20083771 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 321340304 is about 17925.9673100226. The cubic root of 321340304 is about 684.9440016737.

Adding to 321340304 its reverse (403043123), we get a palindrome (724383427).

The spelling of 321340304 in words is "three hundred twenty-one million, three hundred forty thousand, three hundred four".