18448441 has 8 divisors (see below), whose sum is σ = 20775168. Its totient is φ = 16230000.

The previous prime is 18448429. The next prime is 18448447. The reversal of 18448441 is 14484481.

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 18448441 - 2⁹ = 18447929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18448397 and 18448406.

It is not an unprimeable number, because it can be changed into a prime (18448447) 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, 26710 + ... + 27391.

It is an arithmetic number, because the mean of its divisors is an integer number (2596896).

Almost surely, 2^18448441 is an apocalyptic number.

18448441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18448441 is a deficient number, since it is larger than the sum of its proper divisors (2326727).

18448441 is a wasteful number, since it uses less digits than its factorization.

18448441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54143.

The product of its digits is 16384, while the sum is 34.

The square root of 18448441 is about 4295.1648396773. The cubic root of 18448441 is about 264.2326967705.

The spelling of 18448441 in words is "eighteen million, four hundred forty-eight thousand, four hundred forty-one".