320222224 has 40 divisors (see below), whose sum is σ = 713619008. Its totient is φ = 136356480.

The previous prime is 320222213. The next prime is 320222269. The reversal of 320222224 is 422222023.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8479 + ... + 26689.

Almost surely, 2^320222224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320222224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356809504).

320222224 is an abundant number, since it is smaller than the sum of its proper divisors (393396784).

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

320222224 is a wasteful number, since it uses less digits than its factorization.

320222224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18383 (or 18377 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 320222224 is about 17894.7540916326. The cubic root of 320222224 is about 684.1486744063.

Adding to 320222224 its reverse (422222023), we get a palindrome (742444247).

The spelling of 320222224 in words is "three hundred twenty million, two hundred twenty-two thousand, two hundred twenty-four".