1728602345 has 8 divisors (see below), whose sum is σ = 2105283264. Its totient is φ = 1362241584.

The previous prime is 1728602321. The next prime is 1728602363. The reversal of 1728602345 is 5432068271.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1728602345 - 2⁸ = 1728602089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1728602299 and 1728602308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579669 + ... + 2580338.

It is an arithmetic number, because the mean of its divisors is an integer number (263160408).

Almost surely, 2^1728602345 is an apocalyptic number.

It is an amenable number.

1728602345 is a deficient number, since it is larger than the sum of its proper divisors (376680919).

1728602345 is an equidigital number, since it uses as much as digits as its factorization.

1728602345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160079.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 1728602345 is about 41576.4638347226. The cubic root of 1728602345 is about 1200.1394155151.

The spelling of 1728602345 in words is "one billion, seven hundred twenty-eight million, six hundred two thousand, three hundred forty-five".