320433212 has 12 divisors (see below), whose sum is σ = 611736216. Its totient is φ = 145651440.

The previous prime is 320433199. The next prime is 320433287. The reversal of 320433212 is 212334023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3641243 + ... + 3641330.

It is an arithmetic number, because the mean of its divisors is an integer number (50978018).

Almost surely, 2^320433212 is an apocalyptic number.

It is an amenable number.

320433212 is a deficient number, since it is larger than the sum of its proper divisors (291303004).

320433212 is a wasteful number, since it uses less digits than its factorization.

320433212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282588 (or 7282586 counting only the distinct ones).

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

The square root of 320433212 is about 17900.6483681458. The cubic root of 320433212 is about 684.2988986973.

Adding to 320433212 its reverse (212334023), we get a palindrome (532767235).

The spelling of 320433212 in words is "three hundred twenty million, four hundred thirty-three thousand, two hundred twelve".