38118809 has 8 divisors (see below), whose sum is σ = 39452160. Its totient is φ = 36792000.

The previous prime is 38118803. The next prime is 38118853. The reversal of 38118809 is 90881183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38118809 - 2²⁰ = 37070233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38118803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12209 + ... + 15009.

It is an arithmetic number, because the mean of its divisors is an integer number (4931520).

Almost surely, 2^38118809 is an apocalyptic number.

It is an amenable number.

38118809 is a deficient number, since it is larger than the sum of its proper divisors (1333351).

38118809 is a wasteful number, since it uses less digits than its factorization.

38118809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 38118809 is about 6174.0431647341. The cubic root of 38118809 is about 336.5475559211.

The spelling of 38118809 in words is "thirty-eight million, one hundred eighteen thousand, eight hundred nine".