320020322 has 8 divisors (see below), whose sum is σ = 483088476. Its totient is φ = 158990832.

The previous prime is 320020313. The next prime is 320020331. The reversal of 320020322 is 223020023.

It is an interprime number because it is at equal distance from previous prime (320020313) and next prime (320020331).

It can be written as a sum of positive squares in 2 ways, for example, as 316519681 + 3500641 = 17791^2 + 1871^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 320020297 and 320020306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509273 + ... + 509900.

Almost surely, 2^320020322 is an apocalyptic number.

320020322 is a deficient number, since it is larger than the sum of its proper divisors (163068154).

320020322 is a wasteful number, since it uses less digits than its factorization.

320020322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019332.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 320020322 is about 17889.1118281484. Note that the first 3 decimals coincide. The cubic root of 320020322 is about 684.0048575855.

Adding to 320020322 its reverse (223020023), we get a palindrome (543040345).

The spelling of 320020322 in words is "three hundred twenty million, twenty thousand, three hundred twenty-two".