38381908 has 6 divisors (see below), whose sum is σ = 67168346. Its totient is φ = 19190952.

The previous prime is 38381899. The next prime is 38381909. The reversal of 38381908 is 80918383.

It can be written as a sum of positive squares in only one way, i.e., 29030544 + 9351364 = 5388^2 + 3058^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38381909) by changing a digit.

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 as a sum of consecutive naturals, namely, 4797735 + ... + 4797742.

Almost surely, 2^38381908 is an apocalyptic number.

It is an amenable number.

38381908 is a deficient number, since it is larger than the sum of its proper divisors (28786438).

38381908 is a wasteful number, since it uses less digits than its factorization.

38381908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9595481 (or 9595479 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 38381908 is about 6195.3133899747. The cubic root of 38381908 is about 337.3200738260.

The spelling of 38381908 in words is "thirty-eight million, three hundred eighty-one thousand, nine hundred eight".