1729340079 has 16 divisors (see below), whose sum is σ = 2465601120. Its totient is φ = 1074329600.

The previous prime is 1729340071. The next prime is 1729340089. The reversal of 1729340079 is 9700439271.

It is a cyclic number.

It is not a de Polignac number, because 1729340079 - 2³ = 1729340071 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1729340079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1729340071) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 162714 + ... + 173015.

It is an arithmetic number, because the mean of its divisors is an integer number (154100070).

Almost surely, 2^1729340079 is an apocalyptic number.

1729340079 is a deficient number, since it is larger than the sum of its proper divisors (736261041).

1729340079 is a wasteful number, since it uses less digits than its factorization.

1729340079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335850.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 1729340079 is about 41585.3349030641. The cubic root of 1729340079 is about 1200.3101233183.

The spelling of 1729340079 in words is "one billion, seven hundred twenty-nine million, three hundred forty thousand, seventy-nine".