38809105 has 8 divisors (see below), whose sum is σ = 48177000. Its totient is φ = 29976576.

The previous prime is 38809087. The next prime is 38809129. The reversal of 38809105 is 50190883.

It can be written as a sum of positive squares in 4 ways, for example, as 4422609 + 34386496 = 2103^2 + 5864^2 .

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 38809105 - 2⁹ = 38808593 is a prime.

It is a super-2 number, since 2×38809105² = 3012293261802050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133680 + ... + 133969.

It is an arithmetic number, because the mean of its divisors is an integer number (6022125).

Almost surely, 2^38809105 is an apocalyptic number.

It is an amenable number.

38809105 is a deficient number, since it is larger than the sum of its proper divisors (9367895).

38809105 is a wasteful number, since it uses less digits than its factorization.

38809105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267683.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 38809105 is about 6229.6954179157. The cubic root of 38809105 is about 338.5669353962.

Adding to 38809105 its reverse (50190883), we get a palindrome (88999988).

The spelling of 38809105 in words is "thirty-eight million, eight hundred nine thousand, one hundred five".