320238224 has 20 divisors (see below), whose sum is σ = 624053436. Its totient is φ = 159192192.

The previous prime is 320238221. The next prime is 320238239. The reversal of 320238224 is 422832023.

It can be written as a sum of positive squares in 2 ways, for example, as 115175824 + 205062400 = 10732^2 + 14320^2 .

It is a super-2 number, since 2×320238224² = 205105040221348352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320238193 and 320238202.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55079 + ... + 60614.

Almost surely, 2^320238224 is an apocalyptic number.

It is an amenable number.

320238224 is a deficient number, since it is larger than the sum of its proper divisors (303815212).

320238224 is a wasteful number, since it uses less digits than its factorization.

320238224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115874 (or 115868 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 320238224 is about 17895.2011444409. The cubic root of 320238224 is about 684.1600687815.

The spelling of 320238224 in words is "three hundred twenty million, two hundred thirty-eight thousand, two hundred twenty-four".