18836841 has 8 divisors (see below), whose sum is σ = 25135840. Its totient is φ = 12547872.

The previous prime is 18836837. The next prime is 18836869. The reversal of 18836841 is 14863881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18836841 - 2² = 18836837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18836841.

It is not an unprimeable number, because it can be changed into a prime (18836821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6150 + ... + 8688.

It is an arithmetic number, because the mean of its divisors is an integer number (3141980).

Almost surely, 2^18836841 is an apocalyptic number.

It is an amenable number.

18836841 is a deficient number, since it is larger than the sum of its proper divisors (6298999).

18836841 is a wasteful number, since it uses less digits than its factorization.

18836841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015.

The product of its digits is 36864, while the sum is 39.

The square root of 18836841 is about 4340.1429699953. The cubic root of 18836841 is about 266.0741544250.

The spelling of 18836841 in words is "eighteen million, eight hundred thirty-six thousand, eight hundred forty-one".