1720706112 has 112 divisors (see below), whose sum is σ = 5068702080. Its totient is φ = 572419584.

The previous prime is 1720706093. The next prime is 1720706129. The reversal of 1720706112 is 2116070271.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1698118 + ... + 1699130.

Almost surely, 2^1720706112 is an apocalyptic number.

1720706112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1720706112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2534351040).

1720706112 is an abundant number, since it is smaller than the sum of its proper divisors (3347995968).

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

1720706112 is a wasteful number, since it uses less digits than its factorization.

1720706112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017 (or 2001 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 1720706112 is about 41481.3947692215. The cubic root of 1720706112 is about 1198.3092188347.

Adding to 1720706112 its reverse (2116070271), we get a palindrome (3836776383).

The spelling of 1720706112 in words is "one billion, seven hundred twenty million, seven hundred six thousand, one hundred twelve".