18799894 has 8 divisors (see below), whose sum is σ = 28887768. Its totient is φ = 9170640.

The previous prime is 18799883. The next prime is 18799897. The reversal of 18799894 is 49899781.

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

It is a super-2 number, since 2×18799894² = 706872028822472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18799897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114552 + ... + 114715.

It is an arithmetic number, because the mean of its divisors is an integer number (3610971).

Almost surely, 2^18799894 is an apocalyptic number.

18799894 is a deficient number, since it is larger than the sum of its proper divisors (10087874).

18799894 is a wasteful number, since it uses less digits than its factorization.

18799894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229310.

The product of its digits is 1306368, while the sum is 55.

The square root of 18799894 is about 4335.8844541800. The cubic root of 18799894 is about 265.9000793038.

The spelling of 18799894 in words is "eighteen million, seven hundred ninety-nine thousand, eight hundred ninety-four".