320343132 has 12 divisors (see below), whose sum is σ = 747467336. Its totient is φ = 106781040.

The previous prime is 320343131. The next prime is 320343139. The reversal of 320343132 is 231343023.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 320343099 and 320343108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320343131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13347619 + ... + 13347642.

Almost surely, 2^320343132 is an apocalyptic number.

It is an amenable number.

320343132 is an abundant number, since it is smaller than the sum of its proper divisors (427124204).

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

320343132 is a wasteful number, since it uses less digits than its factorization.

320343132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26695268 (or 26695266 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 320343132 is about 17898.1320813095. The cubic root of 320343132 is about 684.2347694501.

Adding to 320343132 its reverse (231343023), we get a palindrome (551686155).

The spelling of 320343132 in words is "three hundred twenty million, three hundred forty-three thousand, one hundred thirty-two".