30442091 has 2 divisors, whose sum is σ = 30442092. Its totient is φ = 30442090.

The previous prime is 30442079. The next prime is 30442103. The reversal of 30442091 is 19024403.

It is a balanced prime because it is at equal distance from previous prime (30442079) and next prime (30442103).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30442091 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (30442001) 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, 15221045 + 15221046.

It is an arithmetic number, because the mean of its divisors is an integer number (15221046).

Almost surely, 2^30442091 is an apocalyptic number.

30442091 is a deficient number, since it is larger than the sum of its proper divisors (1).

30442091 is an equidigital number, since it uses as much as digits as its factorization.

30442091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30442091 is about 5517.4351831263. The cubic root of 30442091 is about 312.2421245393.

Adding to 30442091 its reverse (19024403), we get a palindrome (49466494).

The spelling of 30442091 in words is "thirty million, four hundred forty-two thousand, ninety-one".