18824241 has 4 divisors (see below), whose sum is σ = 25098992. Its totient is φ = 12549492.

The previous prime is 18824237. The next prime is 18824243. The reversal of 18824241 is 14242881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 18824241 - 2² = 18824237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18824199 and 18824208.

It is not an unprimeable number, because it can be changed into a prime (18824243) 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 3 ways as a sum of consecutive naturals, for example, 3137371 + ... + 3137376.

It is an arithmetic number, because the mean of its divisors is an integer number (6274748).

Almost surely, 2^18824241 is an apocalyptic number.

It is an amenable number.

18824241 is a deficient number, since it is larger than the sum of its proper divisors (6274751).

18824241 is an equidigital number, since it uses as much as digits as its factorization.

18824241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6274750.

The product of its digits is 4096, while the sum is 30.

The square root of 18824241 is about 4338.6911620902. The cubic root of 18824241 is about 266.0148153506.

The spelling of 18824241 in words is "eighteen million, eight hundred twenty-four thousand, two hundred forty-one".