322428331 has 2 divisors, whose sum is σ = 322428332. Its totient is φ = 322428330.

The previous prime is 322428299. The next prime is 322428361. The reversal of 322428331 is 133824223.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 322428331 - 2⁵ = 322428299 is a prime.

It is a super-2 number, since 2×322428331² = 207920057262891122, 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 322428331.

It is not a weakly prime, because it can be changed into another prime (322428361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161214165 + 161214166.

It is an arithmetic number, because the mean of its divisors is an integer number (161214166).

Almost surely, 2^322428331 is an apocalyptic number.

322428331 is a deficient number, since it is larger than the sum of its proper divisors (1).

322428331 is an equidigital number, since it uses as much as digits as its factorization.

322428331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

The square root of 322428331 is about 17956.2894552299. The cubic root of 322428331 is about 685.7161820653.

The spelling of 322428331 in words is "three hundred twenty-two million, four hundred twenty-eight thousand, three hundred thirty-one".