18441849 has 8 divisors (see below), whose sum is σ = 24610432. Its totient is φ = 12283920.

The previous prime is 18441847. The next prime is 18441851. The reversal of 18441849 is 94814481.

It is an interprime number because it is at equal distance from previous prime (18441847) and next prime (18441851).

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

It is not a de Polignac number, because 18441849 - 2¹ = 18441847 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 (18441847) 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 7 ways as a sum of consecutive naturals, for example, 3264 + ... + 6894.

It is an arithmetic number, because the mean of its divisors is an integer number (3076304).

Almost surely, 2^18441849 is an apocalyptic number.

It is an amenable number.

18441849 is a deficient number, since it is larger than the sum of its proper divisors (6168583).

18441849 is a wasteful number, since it uses less digits than its factorization.

18441849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5327.

The product of its digits is 36864, while the sum is 39.

The square root of 18441849 is about 4294.3973966087. The cubic root of 18441849 is about 264.2012211309.

The spelling of 18441849 in words is "eighteen million, four hundred forty-one thousand, eight hundred forty-nine".