18799648 has 96 divisors (see below), whose sum is σ = 45722880. Its totient is φ = 7434240.

The previous prime is 18799633. The next prime is 18799657. The reversal of 18799648 is 84699781.

It is a happy number.

Its product of digits (870912) is a multiple of the sum of its prime divisors (162).

It is a junction number, because it is equal to n+sod(n) for n = 18799595 and 18799604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211188 + ... + 211276.

It is an arithmetic number, because the mean of its divisors is an integer number (476280).

Almost surely, 2^18799648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18799648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22861440).

18799648 is an abundant number, since it is smaller than the sum of its proper divisors (26923232).

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

18799648 is a wasteful number, since it uses less digits than its factorization.

18799648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 162 counting only the distinct ones).

The product of its digits is 870912, while the sum is 52.

The square root of 18799648 is about 4335.8560861726. The cubic root of 18799648 is about 265.8989195152.

The spelling of 18799648 in words is "eighteen million, seven hundred ninety-nine thousand, six hundred forty-eight".