38009409 has 8 divisors (see below), whose sum is σ = 52882752. Its totient is φ = 24237840.

The previous prime is 38009381. The next prime is 38009423. The reversal of 38009409 is 90490083.

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

It is not a de Polignac number, because 38009409 - 2¹² = 38005313 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 38009409.

It is not an unprimeable number, because it can be changed into a prime (38009429) 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, 275362 + ... + 275499.

It is an arithmetic number, because the mean of its divisors is an integer number (6610344).

Almost surely, 2^38009409 is an apocalyptic number.

It is an amenable number.

38009409 is a deficient number, since it is larger than the sum of its proper divisors (14873343).

38009409 is a wasteful number, since it uses less digits than its factorization.

38009409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550887.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 38009409 is about 6165.1771264093. The cubic root of 38009409 is about 336.2252864835.

The spelling of 38009409 in words is "thirty-eight million, nine thousand, four hundred nine".