320142212 has 24 divisors (see below), whose sum is σ = 604023000. Its totient is φ = 147591936.

The previous prime is 320142211. The next prime is 320142257. The reversal of 320142212 is 212241023.

It can be written as a sum of positive squares in 4 ways, for example, as 12630916 + 307511296 = 3554^2 + 17536^2 .

It is not an unprimeable number, because it can be changed into a prime (320142211) 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, 51614 + ... + 57482.

It is an arithmetic number, because the mean of its divisors is an integer number (25167625).

Almost surely, 2^320142212 is an apocalyptic number.

It is an amenable number.

320142212 is a deficient number, since it is larger than the sum of its proper divisors (283880788).

320142212 is a wasteful number, since it uses less digits than its factorization.

320142212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6935 (or 6933 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 320142212 is about 17892.5183247077. The cubic root of 320142212 is about 684.0916882891.

Adding to 320142212 its reverse (212241023), we get a palindrome (532383235).

The spelling of 320142212 in words is "three hundred twenty million, one hundred forty-two thousand, two hundred twelve".