30742427 has 2 divisors, whose sum is σ = 30742428. Its totient is φ = 30742426.

The previous prime is 30742423. The next prime is 30742433. The reversal of 30742427 is 72424703.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30742427 - 2² = 30742423 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30742427.

It is not a weakly prime, because it can be changed into another prime (30742423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15371213 + 15371214.

It is an arithmetic number, because the mean of its divisors is an integer number (15371214).

Almost surely, 2^30742427 is an apocalyptic number.

30742427 is a deficient number, since it is larger than the sum of its proper divisors (1).

30742427 is an equidigital number, since it uses as much as digits as its factorization.

30742427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 30742427 is about 5544.5853767437. The cubic root of 30742427 is about 313.2656069355.

The spelling of 30742427 in words is "thirty million, seven hundred forty-two thousand, four hundred twenty-seven".