18838841 has 8 divisors (see below), whose sum is σ = 21587520. Its totient is φ = 16104528.

The previous prime is 18838829. The next prime is 18838843. The reversal of 18838841 is 14883881.

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

It is a cyclic number.

It is not a de Polignac number, because 18838841 - 2¹⁸ = 18576697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18838843) 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, 611 + ... + 6168.

It is an arithmetic number, because the mean of its divisors is an integer number (2698440).

Almost surely, 2^18838841 is an apocalyptic number.

It is an amenable number.

18838841 is a deficient number, since it is larger than the sum of its proper divisors (2748679).

18838841 is an equidigital number, since it uses as much as digits as its factorization.

18838841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7183.

The product of its digits is 49152, while the sum is 41.

The square root of 18838841 is about 4340.3733710362. The cubic root of 18838841 is about 266.0835708920.

The spelling of 18838841 in words is "eighteen million, eight hundred thirty-eight thousand, eight hundred forty-one".