1720941120 has 224 divisors, whose sum is σ = 6098438400. Its totient is φ = 456855552.

The previous prime is 1720941091. The next prime is 1720941137. The reversal of 1720941120 is 211490271.

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 31 ways as a sum of consecutive naturals, for example, 3533517 + ... + 3534003.

Almost surely, 2^1720941120 is an apocalyptic number.

1720941120 is a gapful number since it is divisible by the number (10) 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 1720941120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3049219200).

1720941120 is an abundant number, since it is smaller than the sum of its proper divisors (4377497280).

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

1720941120 is a wasteful number, since it uses less digits than its factorization.

1720941120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1720941120 is about 41484.2273641441. The cubic root of 1720941120 is about 1198.3637699734.

The spelling of 1720941120 in words is "one billion, seven hundred twenty million, nine hundred forty-one thousand, one hundred twenty".