322228345 has 4 divisors (see below), whose sum is σ = 386674020. Its totient is φ = 257782672.

The previous prime is 322228331. The next prime is 322228349. The reversal of 322228345 is 543822223.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543822223 = 7 ⋅77688889.

It can be written as a sum of positive squares in 2 ways, for example, as 32684089 + 289544256 = 5717^2 + 17016^2 .

It is a cyclic number.

It is not a de Polignac number, because 322228345 - 2⁹ = 322227833 is a prime.

It is a super-2 number, since 2×322228345² = 207662212642878050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (322228349) 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, 32222830 + ... + 32222839.

It is an arithmetic number, because the mean of its divisors is an integer number (96668505).

Almost surely, 2^322228345 is an apocalyptic number.

It is an amenable number.

322228345 is a deficient number, since it is larger than the sum of its proper divisors (64445675).

322228345 is an equidigital number, since it uses as much as digits as its factorization.

322228345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64445674.

The product of its digits is 23040, while the sum is 31.

The square root of 322228345 is about 17950.7199019984. The cubic root of 322228345 is about 685.5743810454.

The spelling of 322228345 in words is "three hundred twenty-two million, two hundred twenty-eight thousand, three hundred forty-five".