1728360 has 48 divisors (see below), whose sum is σ = 5618340. Its totient is φ = 460800.

The previous prime is 1728341. The next prime is 1728361. The reversal of 1728360 is 638271.

It can be written as a sum of positive squares in 2 ways, for example, as 1726596 + 1764 = 1314^2 + 42^2 .

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 in 11 ways as a sum of consecutive naturals, for example, 2041 + ... + 2760.

2^1728360 is an apocalyptic number.

1728360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1728360 is an abundant number, since it is smaller than the sum of its proper divisors (3889980).

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

1728360 is a wasteful number, since it uses less digits than its factorization.

1728360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818 (or 4811 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1728360 is about 1314.6710615207. The cubic root of 1728360 is about 120.0083327547.

The spelling of 1728360 in words is "one million, seven hundred twenty-eight thousand, three hundred sixty".