1728382946 has 8 divisors (see below), whose sum is σ = 2596065984. Its totient is φ = 863027620.

The previous prime is 1728382939. The next prime is 1728382963. The reversal of 1728382946 is 6492838271.

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

It is a junction number, because it is equal to n+sod(n) for n = 1728382894 and 1728382903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580070 + ... + 583041.

It is an arithmetic number, because the mean of its divisors is an integer number (324508248).

Almost surely, 2^1728382946 is an apocalyptic number.

1728382946 is a deficient number, since it is larger than the sum of its proper divisors (867683038).

1728382946 is a wasteful number, since it uses less digits than its factorization.

1728382946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163856.

The product of its digits is 1161216, while the sum is 50.

The square root of 1728382946 is about 41573.8252509918. The cubic root of 1728382946 is about 1200.0886383599.

The spelling of 1728382946 in words is "one billion, seven hundred twenty-eight million, three hundred eighty-two thousand, nine hundred forty-six".