320238225 has 96 divisors (see below), whose sum is σ = 611488640. Its totient is φ = 164229120.

The previous prime is 320238221. The next prime is 320238239. The reversal of 320238225 is 522832023.

It is not a de Polignac number, because 320238225 - 2² = 320238221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (320238221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3301377 + ... + 3301473.

Almost surely, 2^320238225 is an apocalyptic number.

It is an amenable number.

320238225 is a deficient number, since it is larger than the sum of its proper divisors (291250415).

320238225 is a wasteful number, since it uses less digits than its factorization.

320238225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 320238225 is about 17895.2011723814. The cubic root of 320238225 is about 684.1600694936.

The spelling of 320238225 in words is "three hundred twenty million, two hundred thirty-eight thousand, two hundred twenty-five".