320422433 has 4 divisors (see below), whose sum is σ = 320483988. Its totient is φ = 320360880.

The previous prime is 320422393. The next prime is 320422481. The reversal of 320422433 is 334224023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 178169104 + 142253329 = 13348^2 + 11927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320422433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320422399 and 320422408.

It is not an unprimeable number, because it can be changed into a prime (320422493) 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, 22166 + ... + 33647.

It is an arithmetic number, because the mean of its divisors is an integer number (80120997).

Almost surely, 2^320422433 is an apocalyptic number.

It is an amenable number.

320422433 is a deficient number, since it is larger than the sum of its proper divisors (61555).

320422433 is an equidigital number, since it uses as much as digits as its factorization.

320422433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61554.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 320422433 is about 17900.3472871338. The cubic root of 320422433 is about 684.2912256053.

Adding to 320422433 its reverse (334224023), we get a palindrome (654646456).

The spelling of 320422433 in words is "three hundred twenty million, four hundred twenty-two thousand, four hundred thirty-three".