322320401 has 16 divisors (see below), whose sum is σ = 359508240. Its totient is φ = 287089920.

The previous prime is 322320347. The next prime is 322320421. The reversal of 322320401 is 104023223.

It can be written as a sum of positive squares in 8 ways, for example, as 3519376 + 318801025 = 1876^2 + 17855^2 .

It is not a de Polignac number, because 322320401 - 2²² = 318126097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 322320401.

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 in 15 ways as a sum of consecutive naturals, for example, 38195 + ... + 45863.

It is an arithmetic number, because the mean of its divisors is an integer number (22469265).

Almost surely, 2^322320401 is an apocalyptic number.

It is an amenable number.

322320401 is a deficient number, since it is larger than the sum of its proper divisors (37187839).

322320401 is a wasteful number, since it uses less digits than its factorization.

322320401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7796.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 322320401 is about 17953.2838500370. The cubic root of 322320401 is about 685.6396610734.

Adding to 322320401 its reverse (104023223), we get a palindrome (426343624).

The spelling of 322320401 in words is "three hundred twenty-two million, three hundred twenty thousand, four hundred one".