38408005 has 8 divisors (see below), whose sum is σ = 46172952. Its totient is φ = 30670848.

The previous prime is 38407937. The next prime is 38408011. The reversal of 38408005 is 50080483.

It can be written as a sum of positive squares in 4 ways, for example, as 12173121 + 26234884 = 3489^2 + 5122^2 .

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 38408005 - 2⁷ = 38407877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3772 + ... + 9541.

It is an arithmetic number, because the mean of its divisors is an integer number (5771619).

Almost surely, 2^38408005 is an apocalyptic number.

It is an amenable number.

38408005 is a deficient number, since it is larger than the sum of its proper divisors (7764947).

38408005 is a wasteful number, since it uses less digits than its factorization.

38408005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13895.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 38408005 is about 6197.4192209338. The cubic root of 38408005 is about 337.3965078199.

Adding to 38408005 its reverse (50080483), we get a palindrome (88488488).

The spelling of 38408005 in words is "thirty-eight million, four hundred eight thousand, five".