38818005 has 16 divisors (see below), whose sum is σ = 63431424. Its totient is φ = 20262080.

The previous prime is 38817971. The next prime is 38818009. The reversal of 38818005 is 50081883.

It is not a de Polignac number, because 38818005 - 2⁶ = 38817941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38818009) 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, 26826 + ... + 28235.

It is an arithmetic number, because the mean of its divisors is an integer number (3964464).

Almost surely, 2^38818005 is an apocalyptic number.

It is an amenable number.

38818005 is a deficient number, since it is larger than the sum of its proper divisors (24613419).

38818005 is a wasteful number, since it uses less digits than its factorization.

38818005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55116.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 38818005 is about 6230.4096976042. The cubic root of 38818005 is about 338.5928143355.

Adding to 38818005 its reverse (50081883), we get a palindrome (88899888).

The spelling of 38818005 in words is "thirty-eight million, eight hundred eighteen thousand, five".