1728345804 has 24 divisors (see below), whose sum is σ = 4058497968. Its totient is φ = 572445120.

The previous prime is 1728345803. The next prime is 1728345863. The reversal of 1728345804 is 4085438271.

It is not an unprimeable number, because it can be changed into a prime (1728345803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456807 + ... + 460574.

It is an arithmetic number, because the mean of its divisors is an integer number (169104082).

Almost surely, 2^1728345804 is an apocalyptic number.

It is an amenable number.

1728345804 is an abundant number, since it is smaller than the sum of its proper divisors (2330152164).

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

1728345804 is a wasteful number, since it uses less digits than its factorization.

1728345804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917545 (or 917543 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 1728345804 is about 41573.3785492591. The cubic root of 1728345804 is about 1200.0800418832.

The spelling of 1728345804 in words is "one billion, seven hundred twenty-eight million, three hundred forty-five thousand, eight hundred four".