38044681 has 4 divisors (see below), whose sum is σ = 38084992. Its totient is φ = 38004372.

The previous prime is 38044651. The next prime is 38044687. The reversal of 38044681 is 18644083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18644083 = 191 ⋅97613.

It is a cyclic number.

It is not a de Polignac number, because 38044681 - 2⁵ = 38044649 is a prime.

It is a super-2 number, since 2×38044681² = 2894795504783522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38044687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18705 + ... + 20638.

It is an arithmetic number, because the mean of its divisors is an integer number (9521248).

Almost surely, 2^38044681 is an apocalyptic number.

It is an amenable number.

38044681 is a deficient number, since it is larger than the sum of its proper divisors (40311).

38044681 is an equidigital number, since it uses as much as digits as its factorization.

38044681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40310.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 38044681 is about 6168.0370459328. The cubic root of 38044681 is about 336.3292578606.

The spelling of 38044681 in words is "thirty-eight million, forty-four thousand, six hundred eighty-one".