38941181 has 4 divisors (see below), whose sum is σ = 39189372. Its totient is φ = 38692992.

The previous prime is 38941159. The next prime is 38941207. The reversal of 38941181 is 18114983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18114983 = 211 ⋅85853.

It can be written as a sum of positive squares in 2 ways, for example, as 27825625 + 11115556 = 5275^2 + 3334^2 .

It is a cyclic number.

It is not a de Polignac number, because 38941181 - 2⁶ = 38941117 is a prime.

It is a super-2 number, since 2×38941181² = 3032831155349522, which contains 22 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 (38941141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123860 + ... + 124173.

It is an arithmetic number, because the mean of its divisors is an integer number (9797343).

Almost surely, 2^38941181 is an apocalyptic number.

It is an amenable number.

38941181 is a deficient number, since it is larger than the sum of its proper divisors (248191).

38941181 is a wasteful number, since it uses less digits than its factorization.

38941181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248190.

The product of its digits is 6912, while the sum is 35.

The square root of 38941181 is about 6240.2869325056. The cubic root of 38941181 is about 338.9505733376.

The spelling of 38941181 in words is "thirty-eight million, nine hundred forty-one thousand, one hundred eighty-one".