1720485000 has 480 divisors, whose sum is σ = 6677831160. Its totient is φ = 396288000.

The previous prime is 1720484999. The next prime is 1720485007. The reversal of 1720485000 is 5840271.

It can be written as a sum of positive squares in 20 ways, for example, as 372567204 + 1347917796 = 19302^2 + 36714^2 .

It is not an unprimeable number, because it can be changed into a prime (1720485007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 9944914 + ... + 9945086.

Almost surely, 2^1720485000 is an apocalyptic number.

1720485000 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 1720485000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3338915580).

1720485000 is an abundant number, since it is smaller than the sum of its proper divisors (4957346160).

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

1720485000 is a wasteful number, since it uses less digits than its factorization.

1720485000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1720485000 is about 41478.7294887392. The cubic root of 1720485000 is about 1198.2578887643.

The spelling of 1720485000 in words is "one billion, seven hundred twenty million, four hundred eighty-five thousand".