30242239 has 2 divisors, whose sum is σ = 30242240. Its totient is φ = 30242238.

The previous prime is 30242231. The next prime is 30242249. The reversal of 30242239 is 93224203.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30242239 - 2³ = 30242231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30242231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15121119 + 15121120.

It is an arithmetic number, because the mean of its divisors is an integer number (15121120).

Almost surely, 2^30242239 is an apocalyptic number.

30242239 is a deficient number, since it is larger than the sum of its proper divisors (1).

30242239 is an equidigital number, since it uses as much as digits as its factorization.

30242239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 30242239 is about 5499.2944092856. The cubic root of 30242239 is about 311.5573350710.

The spelling of 30242239 in words is "thirty million, two hundred forty-two thousand, two hundred thirty-nine".