38936281 has 2 divisors, whose sum is σ = 38936282. Its totient is φ = 38936280.

The previous prime is 38936269. The next prime is 38936323. The reversal of 38936281 is 18263983.

38936281 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., 26574025 + 12362256 = 5155^2 + 3516^2 .

It is a cyclic number.

It is not a de Polignac number, because 38936281 - 2¹³ = 38928089 is a prime.

It is a super-2 number, since 2×38936281² = 3032067956221922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38936881) 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, 19468140 + 19468141.

It is an arithmetic number, because the mean of its divisors is an integer number (19468141).

Almost surely, 2^38936281 is an apocalyptic number.

It is an amenable number.

38936281 is a deficient number, since it is larger than the sum of its proper divisors (1).

38936281 is an equidigital number, since it uses as much as digits as its factorization.

38936281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 38936281 is about 6239.8943100024. The cubic root of 38936281 is about 338.9363559339.

The spelling of 38936281 in words is "thirty-eight million, nine hundred thirty-six thousand, two hundred eighty-one".