19744116 has 96 divisors (see below), whose sum is σ = 56448000. Its totient is φ = 5246208.

The previous prime is 19744063. The next prime is 19744121. The reversal of 19744116 is 61144791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141975 + ... + 142113.

It is an arithmetic number, because the mean of its divisors is an integer number (588000).

Almost surely, 2^19744116 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 19744116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28224000).

19744116 is an abundant number, since it is smaller than the sum of its proper divisors (36703884).

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

19744116 is a wasteful number, since it uses less digits than its factorization.

19744116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 259 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 19744116 is about 4443.4351576230. The cubic root of 19744116 is about 270.2791625676.

The spelling of 19744116 in words is "nineteen million, seven hundred forty-four thousand, one hundred sixteen".