38000209 has 16 divisors (see below), whose sum is σ = 44956800. Its totient is φ = 31781376.

The previous prime is 38000201. The next prime is 38000227. The reversal of 38000209 is 90200083.

It is not a de Polignac number, because 38000209 - 2³ = 38000201 is a prime.

It is a Duffinian number.

38000209 is a modest number, since divided by 209 gives 38 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 38000209.

It is not an unprimeable number, because it can be changed into a prime (38000201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337 + ... + 9025.

It is an arithmetic number, because the mean of its divisors is an integer number (2809800).

Almost surely, 2^38000209 is an apocalyptic number.

It is an amenable number.

38000209 is a deficient number, since it is larger than the sum of its proper divisors (6956591).

38000209 is a wasteful number, since it uses less digits than its factorization.

38000209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 38000209 is about 6164.4309550842. The cubic root of 38000209 is about 336.1981570409.

The spelling of 38000209 in words is "thirty-eight million, two hundred nine", and thus it is an aban number.