38390629 has 2 divisors, whose sum is σ = 38390630. Its totient is φ = 38390628.

The previous prime is 38390609. The next prime is 38390633. The reversal of 38390629 is 92609383.

38390629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38316100 + 74529 = 6190^2 + 273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38390629 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 38390591 and 38390600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38390609) 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, 19195314 + 19195315.

It is an arithmetic number, because the mean of its divisors is an integer number (19195315).

Almost surely, 2^38390629 is an apocalyptic number.

It is an amenable number.

38390629 is a deficient number, since it is larger than the sum of its proper divisors (1).

38390629 is an equidigital number, since it uses as much as digits as its factorization.

38390629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 38390629 is about 6196.0171884849. The cubic root of 38390629 is about 337.3456201119.

The spelling of 38390629 in words is "thirty-eight million, three hundred ninety thousand, six hundred twenty-nine".