18814011 has 12 divisors (see below), whose sum is σ = 25983672. Its totient is φ = 12108544.

The previous prime is 18814007. The next prime is 18814013. The reversal of 18814011 is 11041881.

It is not a de Polignac number, because 18814011 - 2² = 18814007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18814013) 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 11 ways as a sum of consecutive naturals, for example, 1206 + ... + 6251.

It is an arithmetic number, because the mean of its divisors is an integer number (2165306).

Almost surely, 2^18814011 is an apocalyptic number.

18814011 is a deficient number, since it is larger than the sum of its proper divisors (7169661).

18814011 is an equidigital number, since it uses as much as digits as its factorization.

18814011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7518 (or 7489 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 24.

The square root of 18814011 is about 4337.5120749111. The cubic root of 18814011 is about 265.9666181939.

Adding to 18814011 its reverse (11041881), we get a palindrome (29855892).

The spelling of 18814011 in words is "eighteen million, eight hundred fourteen thousand, eleven".