1730272738 has 8 divisors (see below), whose sum is σ = 2597853888. Its totient is φ = 864321444.

The previous prime is 1730272717. The next prime is 1730272741. The reversal of 1730272738 is 8372720371.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1730272738.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404806 + ... + 409057.

It is an arithmetic number, because the mean of its divisors is an integer number (324731736).

Almost surely, 2^1730272738 is an apocalyptic number.

1730272738 is a deficient number, since it is larger than the sum of its proper divisors (867581150).

1730272738 is a wasteful number, since it uses less digits than its factorization.

1730272738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814928.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 1730272738 is about 41596.5471884386. The cubic root of 1730272738 is about 1200.5258662795.

The spelling of 1730272738 in words is "one billion, seven hundred thirty million, two hundred seventy-two thousand, seven hundred thirty-eight".