1728000004 has 6 divisors (see below), whose sum is σ = 3024000014. Its totient is φ = 864000000.

The previous prime is 1727999993. The next prime is 1728000013. The reversal of 1728000004 is 4000008271.

It can be written as a sum of positive squares in only one way, i.e., 1672646404 + 55353600 = 40898^2 + 7440^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215999997 + ... + 216000004.

Almost surely, 2^1728000004 is an apocalyptic number.

It is an amenable number.

1728000004 is a deficient number, since it is larger than the sum of its proper divisors (1296000010).

1728000004 is a wasteful number, since it uses less digits than its factorization.

1728000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432000005 (or 432000003 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1728000004 is about 41569.2194297656. The cubic root of 1728000004 is about 1200.0000009259. Note that the first 6 decimals are identical.

Adding to 1728000004 its reverse (4000008271), we get a palindrome (5728008275).

The spelling of 1728000004 in words is "one billion, seven hundred twenty-eight million, four", and thus it is an aban number.