320343834 has 16 divisors (see below), whose sum is σ = 642339360. Its totient is φ = 106506000.

The previous prime is 320343833. The next prime is 320343871. The reversal of 320343834 is 438343023.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (320343833) 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, 66292 + ... + 70959.

It is an arithmetic number, because the mean of its divisors is an integer number (40146210).

Almost surely, 2^320343834 is an apocalyptic number.

320343834 is an abundant number, since it is smaller than the sum of its proper divisors (321995526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320343834 is a wasteful number, since it uses less digits than its factorization.

320343834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137645.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 320343834 is about 17898.1516922838. The cubic root of 320343834 is about 684.2352692605.

Adding to 320343834 its reverse (438343023), we get a palindrome (758686857).

The spelling of 320343834 in words is "three hundred twenty million, three hundred forty-three thousand, eight hundred thirty-four".