30222009 has 6 divisors (see below), whose sum is σ = 43654026. Its totient is φ = 20148000.

The previous prime is 30221969. The next prime is 30222011. The reversal of 30222009 is 90022203.

It can be written as a sum of positive squares in only one way, i.e., 22353984 + 7868025 = 4728^2 + 2805^2 .

It is not a de Polignac number, because 30222009 - 2⁸ = 30221753 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30221982 and 30222000.

It is not an unprimeable number, because it can be changed into a prime (30222109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1678992 + ... + 1679009.

It is an arithmetic number, because the mean of its divisors is an integer number (7275671).

Almost surely, 2^30222009 is an apocalyptic number.

It is an amenable number.

30222009 is a deficient number, since it is larger than the sum of its proper divisors (13432017).

30222009 is a wasteful number, since it uses less digits than its factorization.

30222009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358007 (or 3358004 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30222009 is about 5497.4547747117. The cubic root of 30222009 is about 311.4878493560.

The spelling of 30222009 in words is "thirty million, two hundred twenty-two thousand, nine".