38386429 has 2 divisors, whose sum is σ = 38386430. Its totient is φ = 38386428.

The previous prime is 38386417. The next prime is 38386499. The reversal of 38386429 is 92468383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23059204 + 15327225 = 4802^2 + 3915^2 .

It is a cyclic number.

It is not a de Polignac number, because 38386429 - 2⁹ = 38385917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38386499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19193214 + 19193215.

It is an arithmetic number, because the mean of its divisors is an integer number (19193215).

Almost surely, 2^38386429 is an apocalyptic number.

It is an amenable number.

38386429 is a deficient number, since it is larger than the sum of its proper divisors (1).

38386429 is an equidigital number, since it uses as much as digits as its factorization.

38386429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 43.

The square root of 38386429 is about 6195.6782518139. The cubic root of 38386429 is about 337.3333176020. Note that the first 4 decimals are identical.

The spelling of 38386429 in words is "thirty-eight million, three hundred eighty-six thousand, four hundred twenty-nine".