38180811 has 4 divisors (see below), whose sum is σ = 50907752. Its totient is φ = 25453872.

The previous prime is 38180801. The next prime is 38180819. The reversal of 38180811 is 11808183.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38180811 - 2¹⁰ = 38179787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38180819) 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, 6363466 + ... + 6363471.

It is an arithmetic number, because the mean of its divisors is an integer number (12726938).

Almost surely, 2^38180811 is an apocalyptic number.

38180811 is a deficient number, since it is larger than the sum of its proper divisors (12726941).

38180811 is a wasteful number, since it uses less digits than its factorization.

38180811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12726940.

The product of its (nonzero) digits is 1536, while the sum is 30.

The square root of 38180811 is about 6179.0623075027. The cubic root of 38180811 is about 336.7299271163.

Adding to 38180811 its reverse (11808183), we get a palindrome (49988994).

The spelling of 38180811 in words is "thirty-eight million, one hundred eighty thousand, eight hundred eleven".