18968338 has 8 divisors (see below), whose sum is σ = 28483200. Its totient is φ = 9473940.

The previous prime is 18968333. The next prime is 18968351. The reversal of 18968338 is 83386981.

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

It is not an unprimeable number, because it can be changed into a prime (18968333) 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, 2538 + ... + 6661.

It is an arithmetic number, because the mean of its divisors is an integer number (3560400).

Almost surely, 2^18968338 is an apocalyptic number.

18968338 is a deficient number, since it is larger than the sum of its proper divisors (9514862).

18968338 is a wasteful number, since it uses less digits than its factorization.

18968338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10232.

The product of its digits is 248832, while the sum is 46.

The square root of 18968338 is about 4355.2655487352. The cubic root of 18968338 is about 266.6918597726.

It can be divided in two parts, 18968 and 338, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 18968338 in words is "eighteen million, nine hundred sixty-eight thousand, three hundred thirty-eight".