38108381 has 2 divisors, whose sum is σ = 38108382. Its totient is φ = 38108380.

The previous prime is 38108353. The next prime is 38108383. The reversal of 38108381 is 18380183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21576025 + 16532356 = 4645^2 + 4066^2 .

It is a cyclic number.

It is not a de Polignac number, because 38108381 - 2²² = 33914077 is a prime.

It is a super-2 number, since 2×38108381² = 2904497404882322, which contains 22 as substring.

Together with 38108383, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38108383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19054190 + 19054191.

It is an arithmetic number, because the mean of its divisors is an integer number (19054191).

Almost surely, 2^38108381 is an apocalyptic number.

It is an amenable number.

38108381 is a deficient number, since it is larger than the sum of its proper divisors (1).

38108381 is an equidigital number, since it uses as much as digits as its factorization.

38108381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 38108381 is about 6173.1986036414. The cubic root of 38108381 is about 336.5168638290.

The spelling of 38108381 in words is "thirty-eight million, one hundred eight thousand, three hundred eighty-one".