18768361 has 8 divisors (see below), whose sum is σ = 19898624. Its totient is φ = 17670960.

The previous prime is 18768359. The next prime is 18768367. The reversal of 18768361 is 16386781.

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 18768361 - 2¹ = 18768359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18768367) 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, 7035 + ... + 9328.

It is an arithmetic number, because the mean of its divisors is an integer number (2487328).

Almost surely, 2^18768361 is an apocalyptic number.

It is an amenable number.

18768361 is a deficient number, since it is larger than the sum of its proper divisors (1130263).

18768361 is a wasteful number, since it uses less digits than its factorization.

18768361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16431.

The product of its digits is 48384, while the sum is 40.

The square root of 18768361 is about 4332.2466457948. The cubic root of 18768361 is about 265.7513316670.

The spelling of 18768361 in words is "eighteen million, seven hundred sixty-eight thousand, three hundred sixty-one".