18893814 has 8 divisors (see below), whose sum is σ = 37787640. Its totient is φ = 6297936.

The previous prime is 18893801. The next prime is 18893821. The reversal of 18893814 is 41839881.

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

18893814 is an admirable number.

It is a congruent number.

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, 1574479 + ... + 1574490.

It is an arithmetic number, because the mean of its divisors is an integer number (4723455).

Almost surely, 2^18893814 is an apocalyptic number.

18893814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18893814 is a wasteful number, since it uses less digits than its factorization.

18893814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148974.

The product of its digits is 55296, while the sum is 42.

The square root of 18893814 is about 4346.7015080403. The cubic root of 18893814 is about 266.3421361127.

The spelling of 18893814 in words is "eighteen million, eight hundred ninety-three thousand, eight hundred fourteen".