38742929 has 2 divisors, whose sum is σ = 38742930. Its totient is φ = 38742928.

The previous prime is 38742923. The next prime is 38742937. The reversal of 38742929 is 92924783.

38742929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35760400 + 2982529 = 5980^2 + 1727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38742929 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 38742929.

It is not a weakly prime, because it can be changed into another prime (38742923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19371464 + 19371465.

It is an arithmetic number, because the mean of its divisors is an integer number (19371465).

Almost surely, 2^38742929 is an apocalyptic number.

It is an amenable number.

38742929 is a deficient number, since it is larger than the sum of its proper divisors (1).

38742929 is an equidigital number, since it uses as much as digits as its factorization.

38742929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 38742929 is about 6224.3818166947. The cubic root of 38742929 is about 338.3743882061.

The spelling of 38742929 in words is "thirty-eight million, seven hundred forty-two thousand, nine hundred twenty-nine".