38000081 has 8 divisors (see below), whose sum is σ = 43595904. Its totient is φ = 32446080.

The previous prime is 38000069. The next prime is 38000107. The reversal of 38000081 is 18000083.

38000081 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 a de Polignac number, because none of the positive numbers 2^k-38000081 is a prime.

It is a super-2 number, since 2×38000081² = 2888012312013122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38000681) 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, 8480 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (5449488).

Almost surely, 2^38000081 is an apocalyptic number.

It is an amenable number.

38000081 is a deficient number, since it is larger than the sum of its proper divisors (5595823).

38000081 is a wasteful number, since it uses less digits than its factorization.

38000081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20911.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 38000081 is about 6164.4205729330. The cubic root of 38000081 is about 336.1977795569.

The spelling of 38000081 in words is "thirty-eight million, eighty-one", and thus it is an aban number and an uban number.