320106216 has 16 divisors (see below), whose sum is σ = 800265600. Its totient is φ = 106702064.

The previous prime is 320106191. The next prime is 320106221. The reversal of 320106216 is 612601023.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320106192 and 320106201.

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, 6668856 + ... + 6668903.

It is an arithmetic number, because the mean of its divisors is an integer number (50016600).

Almost surely, 2^320106216 is an apocalyptic number.

It is an amenable number.

320106216 is an abundant number, since it is smaller than the sum of its proper divisors (480159384).

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

320106216 is a wasteful number, since it uses less digits than its factorization.

320106216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13337768 (or 13337764 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 320106216 is about 17891.5124011359. The cubic root of 320106216 is about 684.0660481346.

Adding to 320106216 its reverse (612601023), we get a palindrome (932707239).

It can be divided in two parts, 32010 and 6216, that added together give a triangular number (38226 = T₂₇₆).

The spelling of 320106216 in words is "three hundred twenty million, one hundred six thousand, two hundred sixteen".