18766041 has 16 divisors (see below), whose sum is σ = 28723200. Its totient is φ = 10675728.

The previous prime is 18766039. The next prime is 18766049. The reversal of 18766041 is 14066781.

It is a happy number.

It is not a de Polignac number, because 18766041 - 2¹ = 18766039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18765993 and 18766011.

It is not an unprimeable number, because it can be changed into a prime (18766049) 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 15 ways as a sum of consecutive naturals, for example, 3150 + ... + 6888.

It is an arithmetic number, because the mean of its divisors is an integer number (1795200).

Almost surely, 2^18766041 is an apocalyptic number.

It is an amenable number.

18766041 is a deficient number, since it is larger than the sum of its proper divisors (9957159).

18766041 is a wasteful number, since it uses less digits than its factorization.

18766041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 18766041 is about 4331.9788780649. The cubic root of 18766041 is about 265.7403811726.

The spelling of 18766041 in words is "eighteen million, seven hundred sixty-six thousand, forty-one".