1728368 has 10 divisors (see below), whose sum is σ = 3348744. Its totient is φ = 864176.

The previous prime is 1728361. The next prime is 1728403. The reversal of 1728368 is 8638271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1728361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53996 + ... + 54027.

2^1728368 is an apocalyptic number.

It is an amenable number.

1728368 is a deficient number, since it is larger than the sum of its proper divisors (1620376).

1728368 is a wasteful number, since it uses less digits than its factorization.

1728368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108031 (or 108025 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 1728368 is about 1314.6741041034. The cubic root of 1728368 is about 120.0085179139.

Subtracting 1728368 from its reverse (8638271), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 1728368 in words is "one million, seven hundred twenty-eight thousand, three hundred sixty-eight".