1731728746 has 8 divisors (see below), whose sum is σ = 2833737984. Its totient is φ = 787149420.

The previous prime is 1731728737. The next prime is 1731728807. The reversal of 1731728746 is 6478271371.

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 = 1731728696 and 1731728705.

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, 39357450 + ... + 39357493.

It is an arithmetic number, because the mean of its divisors is an integer number (354217248).

Almost surely, 2^1731728746 is an apocalyptic number.

1731728746 is a deficient number, since it is larger than the sum of its proper divisors (1102009238).

1731728746 is a wasteful number, since it uses less digits than its factorization.

1731728746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78714956.

The product of its digits is 395136, while the sum is 46.

The square root of 1731728746 is about 41614.0450569276. The cubic root of 1731728746 is about 1200.8625155554.

The spelling of 1731728746 in words is "one billion, seven hundred thirty-one million, seven hundred twenty-eight thousand, seven hundred forty-six".