30422939 has 2 divisors, whose sum is σ = 30422940. Its totient is φ = 30422938.

The previous prime is 30422929. The next prime is 30422941. The reversal of 30422939 is 93922403.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30422939 - 2⁸ = 30422683 is a prime.

Together with 30422941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30422929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15211469 + 15211470.

It is an arithmetic number, because the mean of its divisors is an integer number (15211470).

Almost surely, 2^30422939 is an apocalyptic number.

30422939 is a deficient number, since it is larger than the sum of its proper divisors (1).

30422939 is an equidigital number, since it uses as much as digits as its factorization.

30422939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 30422939 is about 5515.6993210290. The cubic root of 30422939 is about 312.1766306186.

The spelling of 30422939 in words is "thirty million, four hundred twenty-two thousand, nine hundred thirty-nine".