1720544448 has 168 divisors, whose sum is σ = 5327904000. Its totient is φ = 488581632.

The previous prime is 1720544431. The next prime is 1720544453. The reversal of 1720544448 is 8444450271.

It is a tau number, because it is divible by the number of its divisors (168).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1871733 + ... + 1872651.

Almost surely, 2^1720544448 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 1720544448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2663952000).

1720544448 is an abundant number, since it is smaller than the sum of its proper divisors (3607359552).

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

1720544448 is a wasteful number, since it uses less digits than its factorization.

1720544448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 39.

The square root of 1720544448 is about 41479.4460908050. The cubic root of 1720544448 is about 1198.2716897592.

The spelling of 1720544448 in words is "one billion, seven hundred twenty million, five hundred forty-four thousand, four hundred forty-eight".