1728382672 has 10 divisors (see below), whose sum is σ = 3348741458. Its totient is φ = 864191328.

The previous prime is 1728382661. The next prime is 1728382727. The reversal of 1728382672 is 2762838271.

It can be written as a sum of positive squares in only one way, i.e., 1616361616 + 112021056 = 40204^2 + 10584^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54011943 + ... + 54011974.

Almost surely, 2^1728382672 is an apocalyptic number.

It is an amenable number.

1728382672 is a deficient number, since it is larger than the sum of its proper divisors (1620358786).

1728382672 is a wasteful number, since it uses less digits than its factorization.

1728382672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108023925 (or 108023919 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The square root of 1728382672 is about 41573.8219556490. The cubic root of 1728382672 is about 1200.0885749434.

It can be divided in two parts, 1728 and 382672, that added together give a square (384400 = 620²).

The spelling of 1728382672 in words is "one billion, seven hundred twenty-eight million, three hundred eighty-two thousand, six hundred seventy-two".