320220422 has 16 divisors (see below), whose sum is σ = 494194560. Its totient is φ = 155504448.

The previous prime is 320220419. The next prime is 320220427. The reversal of 320220422 is 224022023.

It is a super-2 number, since 2×320220422² = 205082237331716168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320220422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320220427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41354 + ... + 48482.

It is an arithmetic number, because the mean of its divisors is an integer number (30887160).

Almost surely, 2^320220422 is an apocalyptic number.

320220422 is a deficient number, since it is larger than the sum of its proper divisors (173974138).

320220422 is a wasteful number, since it uses less digits than its factorization.

320220422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7775.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 320220422 is about 17894.7037416103. The cubic root of 320220422 is about 684.1473910910.

Adding to 320220422 its reverse (224022023), we get a palindrome (544242445).

The spelling of 320220422 in words is "three hundred twenty million, two hundred twenty thousand, four hundred twenty-two".