18799814 has 16 divisors (see below), whose sum is σ = 30837456. Its totient is φ = 8524800.

The previous prime is 18799813. The next prime is 18799817. The reversal of 18799814 is 41899781.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18799813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11954 + ... + 13434.

It is an arithmetic number, because the mean of its divisors is an integer number (1927341).

Almost surely, 2^18799814 is an apocalyptic number.

18799814 is a deficient number, since it is larger than the sum of its proper divisors (12037642).

18799814 is a wasteful number, since it uses less digits than its factorization.

18799814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071.

The product of its digits is 145152, while the sum is 47.

The square root of 18799814 is about 4335.8752288321. The cubic root of 18799814 is about 265.8997021379.

It can be divided in two parts, 187 and 99814, that added together give a palindrome (100001).

The spelling of 18799814 in words is "eighteen million, seven hundred ninety-nine thousand, eight hundred fourteen".