1728730084 has 9 divisors (see below), whose sum is σ = 3025423177. Its totient is φ = 864323464.

The previous prime is 1728730079. The next prime is 1728730093. The reversal of 1728730084 is 4800378271.

The square root of 1728730084 is 41578.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1527090084 + 201640000 = 39078^2 + 14200^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 72762 + ... + 93550.

Almost surely, 2^1728730084 is an apocalyptic number.

1728730084 is the 41578-th square number.

It is an amenable number.

1728730084 is a deficient number, since it is larger than the sum of its proper divisors (1296693093).

1728730084 is an frugal number, since it uses more digits than its factorization.

1728730084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41582 (or 20791 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The cubic root of 1728730084 is about 1200.1689771304.

The spelling of 1728730084 in words is "one billion, seven hundred twenty-eight million, seven hundred thirty thousand, eighty-four".