320434212 has 24 divisors (see below), whose sum is σ = 854491456. Its totient is φ = 91552608.

The previous prime is 320434201. The next prime is 320434243. The reversal of 320434212 is 212434023.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1907263 + ... + 1907430.

Almost surely, 2^320434212 is an apocalyptic number.

It is an amenable number.

320434212 is an abundant number, since it is smaller than the sum of its proper divisors (534057244).

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

320434212 is a wasteful number, since it uses less digits than its factorization.

320434212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814707 (or 3814705 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 320434212 is about 17900.6763000731. The cubic root of 320434212 is about 684.2996105442.

Adding to 320434212 its reverse (212434023), we get a palindrome (532868235).

The spelling of 320434212 in words is "three hundred twenty million, four hundred thirty-four thousand, two hundred twelve".