1740745729 has 4 divisors (see below), whose sum is σ = 1741221040. Its totient is φ = 1740270420.

The previous prime is 1740745717. The next prime is 1740745739. The reversal of 1740745729 is 9275470471.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9275470471 = 659 ⋅14075069.

It is a cyclic number.

It is not a de Polignac number, because 1740745729 - 2¹¹ = 1740743681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1740745739) by changing a digit.

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, 232119 + ... + 239500.

It is an arithmetic number, because the mean of its divisors is an integer number (435305260).

Almost surely, 2^1740745729 is an apocalyptic number.

It is an amenable number.

1740745729 is a deficient number, since it is larger than the sum of its proper divisors (475311).

1740745729 is an equidigital number, since it uses as much as digits as its factorization.

1740745729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475310.

The product of its (nonzero) digits is 493920, while the sum is 46.

The square root of 1740745729 is about 41722.2450139012. The cubic root of 1740745729 is about 1202.9431757603.

It can be divided in two parts, 17407 and 45729, that added together give a palindrome (63136).

The spelling of 1740745729 in words is "one billion, seven hundred forty million, seven hundred forty-five thousand, seven hundred twenty-nine".