322320424 has 8 divisors (see below), whose sum is σ = 604350810. Its totient is φ = 161160208.

The previous prime is 322320421. The next prime is 322320433. The reversal of 322320424 is 424023223.

It can be written as a sum of positive squares in only one way, i.e., 239692324 + 82628100 = 15482^2 + 9090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 322320395 and 322320404.

It is not an unprimeable number, because it can be changed into a prime (322320421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20145019 + ... + 20145034.

Almost surely, 2^322320424 is an apocalyptic number.

It is an amenable number.

322320424 is a deficient number, since it is larger than the sum of its proper divisors (282030386).

322320424 is a wasteful number, since it uses less digits than its factorization.

322320424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40290059 (or 40290055 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 322320424 is about 17953.2844905883. The cubic root of 322320424 is about 685.6396773820.

Adding to 322320424 its reverse (424023223), we get a palindrome (746343647).

The spelling of 322320424 in words is "three hundred twenty-two million, three hundred twenty thousand, four hundred twenty-four".