38500409 has 2 divisors, whose sum is σ = 38500410. Its totient is φ = 38500408.

The previous prime is 38500381. The next prime is 38500417. The reversal of 38500409 is 90400583.

38500409 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., 34480384 + 4020025 = 5872^2 + 2005^2 .

It is a cyclic number.

It is not a de Polignac number, because 38500409 - 2⁸ = 38500153 is a prime.

It is not a weakly prime, because it can be changed into another prime (38500439) 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, 19250204 + 19250205.

It is an arithmetic number, because the mean of its divisors is an integer number (19250205).

Almost surely, 2^38500409 is an apocalyptic number.

It is an amenable number.

38500409 is a deficient number, since it is larger than the sum of its proper divisors (1).

38500409 is an equidigital number, since it uses as much as digits as its factorization.

38500409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 38500409 is about 6204.8697810671. The cubic root of 38500409 is about 337.6668665470. Note that the first 3 decimals are identical.

The spelling of 38500409 in words is "thirty-eight million, five hundred thousand, four hundred nine".