729242742 has 8 divisors (see below), whose sum is σ = 1458485496. Its totient is φ = 243080912.

The previous prime is 729242711. The next prime is 729242747. The reversal of 729242742 is 247242927.

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

729242742 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 729242742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729242747) 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 3 ways as a sum of consecutive naturals, for example, 60770223 + ... + 60770234.

It is an arithmetic number, because the mean of its divisors is an integer number (182310687).

Almost surely, 2^729242742 is an apocalyptic number.

729242742 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.

729242742 is a wasteful number, since it uses less digits than its factorization.

729242742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121540462.

The product of its digits is 112896, while the sum is 39.

The square root of 729242742 is about 27004.4948480804. The cubic root of 729242742 is about 900.0998827417.

The spelling of 729242742 in words is "seven hundred twenty-nine million, two hundred forty-two thousand, seven hundred forty-two".