320225216 has 14 divisors (see below), whose sum is σ = 635447040. Its totient is φ = 160112576.

The previous prime is 320225203. The next prime is 320225219. The reversal of 320225216 is 612522023.

320225216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 320225191 and 320225200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320225219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2501696 + ... + 2501823.

Almost surely, 2^320225216 is an apocalyptic number.

It is an amenable number.

320225216 is a deficient number, since it is larger than the sum of its proper divisors (315221824).

320225216 is an equidigital number, since it uses as much as digits as its factorization.

320225216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003531 (or 5003521 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 320225216 is about 17894.8376913567. The cubic root of 320225216 is about 684.1508051833.

Adding to 320225216 its reverse (612522023), we get a palindrome (932747239).

The spelling of 320225216 in words is "three hundred twenty million, two hundred twenty-five thousand, two hundred sixteen".