320223042 has 12 divisors (see below), whose sum is σ = 693816630. Its totient is φ = 106741008.

The previous prime is 320223023. The next prime is 320223077. The reversal of 320223042 is 240322023.

It can be written as a sum of positive squares in only one way, i.e., 318943881 + 1279161 = 17859^2 + 1131^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 17790169 = 320223042 / (3 + 2 + 0 + 2 + 2 + 3 + 0 + 4 + 2).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 8895067 + ... + 8895102.

Almost surely, 2^320223042 is an apocalyptic number.

320223042 is an abundant number, since it is smaller than the sum of its proper divisors (373593588).

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

320223042 is a wasteful number, since it uses less digits than its factorization.

320223042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17790177 (or 17790174 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 320223042 is about 17894.7769474783. The cubic root of 320223042 is about 684.1492569530.

Adding to 320223042 its reverse (240322023), we get a palindrome (560545065).

It can be divided in two parts, 3202 and 23042, that added together give a square (26244 = 162²).

The spelling of 320223042 in words is "three hundred twenty million, two hundred twenty-three thousand, forty-two".