18914305 has 8 divisors (see below), whose sum is σ = 22779072. Its totient is φ = 15076848.

The previous prime is 18914299. The next prime is 18914327. The reversal of 18914305 is 50341981.

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 18914305 - 2¹⁵ = 18881537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5269 + ... + 8098.

It is an arithmetic number, because the mean of its divisors is an integer number (2847384).

Almost surely, 2^18914305 is an apocalyptic number.

It is an amenable number.

18914305 is a deficient number, since it is larger than the sum of its proper divisors (3864767).

18914305 is a wasteful number, since it uses less digits than its factorization.

18914305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13655.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 18914305 is about 4349.0579439690. The cubic root of 18914305 is about 266.4383871027.

The spelling of 18914305 in words is "eighteen million, nine hundred fourteen thousand, three hundred five".