322542009 has 12 divisors (see below), whose sum is σ = 470169700. Its totient is φ = 213054624.

The previous prime is 322541981. The next prime is 322542013. The reversal of 322542009 is 900245223.

It can be written as a sum of positive squares in 2 ways, for example, as 113103225 + 209438784 = 10635^2 + 14472^2 .

It is not a de Polignac number, because 322542009 - 2⁷ = 322541881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (322542019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163414 + ... + 165375.

Almost surely, 2^322542009 is an apocalyptic number.

It is an amenable number.

322542009 is a deficient number, since it is larger than the sum of its proper divisors (147627691).

322542009 is a wasteful number, since it uses less digits than its factorization.

322542009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328904 (or 328901 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 322542009 is about 17959.4545852595. The cubic root of 322542009 is about 685.7967598531.

The spelling of 322542009 in words is "three hundred twenty-two million, five hundred forty-two thousand, nine".