18768041 has 4 divisors (see below), whose sum is σ = 18905172. Its totient is φ = 18630912.

The previous prime is 18768019. The next prime is 18768047. The reversal of 18768041 is 14086781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14086781 = 59 ⋅238759.

It can be written as a sum of positive squares in 2 ways, for example, as 14784025 + 3984016 = 3845^2 + 1996^2 .

It is a cyclic number.

It is not a de Polignac number, because 18768041 - 2¹⁰ = 18767017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18767992 and 18768010.

It is not an unprimeable number, because it can be changed into a prime (18768047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68360 + ... + 68633.

It is an arithmetic number, because the mean of its divisors is an integer number (4726293).

Almost surely, 2^18768041 is an apocalyptic number.

It is an amenable number.

18768041 is a deficient number, since it is larger than the sum of its proper divisors (137131).

18768041 is a wasteful number, since it uses less digits than its factorization.

18768041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137130.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 18768041 is about 4332.2097132987. The cubic root of 18768041 is about 265.7498213077.

The spelling of 18768041 in words is "eighteen million, seven hundred sixty-eight thousand, forty-one".