38500209 has 12 divisors (see below), whose sum is σ = 60667152. Its totient is φ = 23333400.

The previous prime is 38500201. The next prime is 38500249. The reversal of 38500209 is 90200583.

It is not a de Polignac number, because 38500209 - 2³ = 38500201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38500201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194347 + ... + 194544.

It is an arithmetic number, because the mean of its divisors is an integer number (5055596).

Almost surely, 2^38500209 is an apocalyptic number.

It is an amenable number.

38500209 is a deficient number, since it is larger than the sum of its proper divisors (22166943).

38500209 is a wasteful number, since it uses less digits than its factorization.

38500209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388908 (or 388905 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 38500209 is about 6204.8536646725. The cubic root of 38500209 is about 337.6662818477. Note that the first 3 decimals are identical.

The spelling of 38500209 in words is "thirty-eight million, five hundred thousand, two hundred nine".