729691742 has 16 divisors (see below), whose sum is σ = 1179459792. Its totient is φ = 336573120.

The previous prime is 729691741. The next prime is 729691747. The reversal of 729691742 is 247196927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729691741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39338 + ... + 54834.

It is an arithmetic number, because the mean of its divisors is an integer number (73716237).

Almost surely, 2^729691742 is an apocalyptic number.

729691742 is a deficient number, since it is larger than the sum of its proper divisors (449768050).

729691742 is a wasteful number, since it uses less digits than its factorization.

729691742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17323.

The product of its digits is 381024, while the sum is 47.

The square root of 729691742 is about 27012.8069996437. The cubic root of 729691742 is about 900.2845774976.

The spelling of 729691742 in words is "seven hundred twenty-nine million, six hundred ninety-one thousand, seven hundred forty-two".