18514443 has 8 divisors (see below), whose sum is σ = 24760528. Its totient is φ = 12305664.

The previous prime is 18514429. The next prime is 18514451. The reversal of 18514443 is 34441581.

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

It is not a de Polignac number, because 18514443 - 2⁴ = 18514427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18514443.

It is not an unprimeable number, because it can be changed into a prime (18514423) 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, 8146 + ... + 10167.

It is an arithmetic number, because the mean of its divisors is an integer number (3095066).

Almost surely, 2^18514443 is an apocalyptic number.

18514443 is a deficient number, since it is larger than the sum of its proper divisors (6246085).

18514443 is a wasteful number, since it uses less digits than its factorization.

18514443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18653.

The product of its digits is 7680, while the sum is 30.

The square root of 18514443 is about 4302.8412706025. The cubic root of 18514443 is about 264.5474321236.

The spelling of 18514443 in words is "eighteen million, five hundred fourteen thousand, four hundred forty-three".