1728741860 has 24 divisors (see below), whose sum is σ = 3650422776. Its totient is φ = 687674880.

The previous prime is 1728741851. The next prime is 1728741887. The reversal of 1728741860 is 681478271.

It can be written as a sum of positive squares in 4 ways, for example, as 22886656 + 1705855204 = 4784^2 + 41302^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235157 + ... + 242396.

It is an arithmetic number, because the mean of its divisors is an integer number (152100949).

Almost surely, 2^1728741860 is an apocalyptic number.

1728741860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1728741860 is an abundant number, since it is smaller than the sum of its proper divisors (1921680916).

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

1728741860 is a wasteful number, since it uses less digits than its factorization.

1728741860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477743 (or 477741 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 1728741860 is about 41578.1416131121. The cubic root of 1728741860 is about 1200.1717022826.

The spelling of 1728741860 in words is "one billion, seven hundred twenty-eight million, seven hundred forty-one thousand, eight hundred sixty".