321342716 has 12 divisors (see below), whose sum is σ = 562613688. Its totient is φ = 160595952.

The previous prime is 321342709. The next prime is 321342719. The reversal of 321342716 is 617243123.

It is a happy number.

321342716 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×321342716² = 206522282252513312, which contains 22 as substring.

321342716 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321342719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8651 + ... + 26786.

It is an arithmetic number, because the mean of its divisors is an integer number (46884474).

Almost surely, 2^321342716 is an apocalyptic number.

It is an amenable number.

321342716 is a deficient number, since it is larger than the sum of its proper divisors (241270972).

321342716 is a wasteful number, since it uses less digits than its factorization.

321342716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37708 (or 37706 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 321342716 is about 17926.0345866006. The cubic root of 321342716 is about 684.9457154133.

Adding to 321342716 its reverse (617243123), we get a palindrome (938585839).

The spelling of 321342716 in words is "three hundred twenty-one million, three hundred forty-two thousand, seven hundred sixteen".