30040217 has 2 divisors, whose sum is σ = 30040218. Its totient is φ = 30040216.

The previous prime is 30040211. The next prime is 30040229. The reversal of 30040217 is 71204003.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26584336 + 3455881 = 5156^2 + 1859^2 .

It is a cyclic number.

It is not a de Polignac number, because 30040217 - 2¹² = 30036121 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30040195 and 30040204.

It is not a weakly prime, because it can be changed into another prime (30040211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15020108 + 15020109.

It is an arithmetic number, because the mean of its divisors is an integer number (15020109).

Almost surely, 2^30040217 is an apocalyptic number.

It is an amenable number.

30040217 is a deficient number, since it is larger than the sum of its proper divisors (1).

30040217 is an equidigital number, since it uses as much as digits as its factorization.

30040217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 30040217 is about 5480.8956384883. The cubic root of 30040217 is about 310.8620370071.

The spelling of 30040217 in words is "thirty million, forty thousand, two hundred seventeen".