18124441 has 4 divisors (see below), whose sum is σ = 18138384. Its totient is φ = 18110500.

The previous prime is 18124439. The next prime is 18124451. The reversal of 18124441 is 14442181.

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 a cyclic number.

It is not a de Polignac number, because 18124441 - 2¹ = 18124439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18124451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4795 + ... + 7696.

It is an arithmetic number, because the mean of its divisors is an integer number (4534596).

Almost surely, 2^18124441 is an apocalyptic number.

It is an amenable number.

18124441 is a deficient number, since it is larger than the sum of its proper divisors (13943).

18124441 is a wasteful number, since it uses less digits than its factorization.

18124441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13942.

The product of its digits is 1024, while the sum is 25.

The square root of 18124441 is about 4257.2809397549. The cubic root of 18124441 is about 262.6766931319.

The spelling of 18124441 in words is "eighteen million, one hundred twenty-four thousand, four hundred forty-one".