38381111 has 8 divisors (see below), whose sum is σ = 38966448. Its totient is φ = 37800000.

The previous prime is 38381107. The next prime is 38381113. The reversal of 38381111 is 11118383.

38381111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38381111 - 2² = 38381107 is a prime.

It is a super-3 number, since 3×38381111³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38381113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20411 + ... + 22211.

It is an arithmetic number, because the mean of its divisors is an integer number (4870806).

Almost surely, 2^38381111 is an apocalyptic number.

38381111 is a deficient number, since it is larger than the sum of its proper divisors (585337).

38381111 is a wasteful number, since it uses less digits than its factorization.

38381111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113.

The product of its digits is 576, while the sum is 26.

The square root of 38381111 is about 6195.2490668253. The cubic root of 38381111 is about 337.3177389937.

Adding to 38381111 its reverse (11118383), we get a palindrome (49499494).

The spelling of 38381111 in words is "thirty-eight million, three hundred eighty-one thousand, one hundred eleven".