38338939 has 2 divisors, whose sum is σ = 38338940. Its totient is φ = 38338938.

The previous prime is 38338933. The next prime is 38338987. The reversal of 38338939 is 93983383.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38338939 - 2⁹ = 38338427 is a prime.

It is not a weakly prime, because it can be changed into another prime (38338933) 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, 19169469 + 19169470.

It is an arithmetic number, because the mean of its divisors is an integer number (19169470).

Almost surely, 2^38338939 is an apocalyptic number.

38338939 is a deficient number, since it is larger than the sum of its proper divisors (1).

38338939 is an equidigital number, since it uses as much as digits as its factorization.

38338939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 46.

The square root of 38338939 is about 6191.8445555424. The cubic root of 38338939 is about 337.1941488853.

The spelling of 38338939 in words is "thirty-eight million, three hundred thirty-eight thousand, nine hundred thirty-nine".