18768422 has 8 divisors (see below), whose sum is σ = 28186272. Its totient is φ = 9373000.

The previous prime is 18768403. The next prime is 18768457. The reversal of 18768422 is 22486781.

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

It is a congruent number.

It is an unprimeable number.

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, 3329 + ... + 6972.

It is an arithmetic number, because the mean of its divisors is an integer number (3523284).

Almost surely, 2^18768422 is an apocalyptic number.

18768422 is a deficient number, since it is larger than the sum of its proper divisors (9417850).

18768422 is a wasteful number, since it uses less digits than its factorization.

18768422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11214.

The product of its digits is 43008, while the sum is 38.

The square root of 18768422 is about 4332.2536860161. The cubic root of 18768422 is about 265.7516195773.

The spelling of 18768422 in words is "eighteen million, seven hundred sixty-eight thousand, four hundred twenty-two".