1728345126 has 8 divisors (see below), whose sum is σ = 3456690264. Its totient is φ = 576115040.

The previous prime is 1728345083. The next prime is 1728345131. The reversal of 1728345126 is 6215438271.

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

1728345126 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 144028755 + ... + 144028766.

It is an arithmetic number, because the mean of its divisors is an integer number (432086283).

Almost surely, 2^1728345126 is an apocalyptic number.

1728345126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1728345126 is a wasteful number, since it uses less digits than its factorization.

1728345126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288057526.

The product of its digits is 80640, while the sum is 39.

The square root of 1728345126 is about 41573.3703950017. The cubic root of 1728345126 is about 1200.0798849597.

The spelling of 1728345126 in words is "one billion, seven hundred twenty-eight million, three hundred forty-five thousand, one hundred twenty-six".