320432212 has 6 divisors (see below), whose sum is σ = 560756378. Its totient is φ = 160216104.

The previous prime is 320432197. The next prime is 320432219. The reversal of 320432212 is 212234023.

It can be written as a sum of positive squares in only one way, i.e., 166771396 + 153660816 = 12914^2 + 12396^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 320432212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320432219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40054023 + ... + 40054030.

Almost surely, 2^320432212 is an apocalyptic number.

It is an amenable number.

320432212 is a deficient number, since it is larger than the sum of its proper divisors (240324166).

320432212 is a wasteful number, since it uses less digits than its factorization.

320432212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80108057 (or 80108055 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 320432212 is about 17900.6204361748. The cubic root of 320432212 is about 684.2981868489.

Adding to 320432212 its reverse (212234023), we get a palindrome (532666235).

The spelling of 320432212 in words is "three hundred twenty million, four hundred thirty-two thousand, two hundred twelve".