18441748224 has 432 divisors, whose sum is σ = 58140386304. Its totient is φ = 5822668800.

The previous prime is 18441748219. The next prime is 18441748231. The reversal of 18441748224 is 42284714481.

18441748224 is a `hidden beast` number, since 1 + 8 + 4 + 417 + 4 + 8 + 224 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a self number, because there is not a number n which added to its sum of digits gives 18441748224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140776639 + ... + 140776769.

Almost surely, 2^18441748224 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 18441748224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29070193152).

18441748224 is an abundant number, since it is smaller than the sum of its proper divisors (39698638080).

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

18441748224 is an equidigital number, since it uses as much as digits as its factorization.

18441748224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 240 counting only the distinct ones).

The product of its digits is 458752, while the sum is 45.

The spelling of 18441748224 in words is "eighteen billion, four hundred forty-one million, seven hundred forty-eight thousand, two hundred twenty-four".