18840368 has 20 divisors (see below), whose sum is σ = 36591408. Its totient is φ = 9397440.

The previous prime is 18840359. The next prime is 18840379. The reversal of 18840368 is 86304881.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6878 + ... + 9218.

Almost surely, 2^18840368 is an apocalyptic number.

It is an amenable number.

18840368 is a deficient number, since it is larger than the sum of its proper divisors (17751040).

18840368 is a wasteful number, since it uses less digits than its factorization.

18840368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852 (or 2846 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 18840368 is about 4340.5492739975. The cubic root of 18840368 is about 266.0907599159.

The spelling of 18840368 in words is "eighteen million, eight hundred forty thousand, three hundred sixty-eight".