18799244 has 12 divisors (see below), whose sum is σ = 32940600. Its totient is φ = 9387648.

The previous prime is 18799241. The next prime is 18799247. The reversal of 18799244 is 44299781.

It is an interprime number because it is at equal distance from previous prime (18799241) and next prime (18799247).

It is a junction number, because it is equal to n+sod(n) for n = 18799195 and 18799204.

It is not an unprimeable number, because it can be changed into a prime (18799241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187 + ... + 6245.

It is an arithmetic number, because the mean of its divisors is an integer number (2745050).

Almost surely, 2^18799244 is an apocalyptic number.

It is an amenable number.

18799244 is a deficient number, since it is larger than the sum of its proper divisors (14141356).

18799244 is a wasteful number, since it uses less digits than its factorization.

18799244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992 (or 5990 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 18799244 is about 4335.8094976602. The cubic root of 18799244 is about 265.8970147999.

The spelling of 18799244 in words is "eighteen million, seven hundred ninety-nine thousand, two hundred forty-four".