729351042 has 64 divisors (see below), whose sum is σ = 1691504640. Its totient is φ = 205357824.

The previous prime is 729351041. The next prime is 729351059. The reversal of 729351042 is 240153927.

It is a junction number, because it is equal to n+sod(n) for n = 729350994 and 729351012.

It is not an unprimeable number, because it can be changed into a prime (729351041) 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 31 ways as a sum of consecutive naturals, for example, 1133973 + ... + 1134615.

It is an arithmetic number, because the mean of its divisors is an integer number (26429760).

Almost surely, 2^729351042 is an apocalyptic number.

It is a pronic number, being equal to 27006×27007.

729351042 is an abundant number, since it is smaller than the sum of its proper divisors (962153598).

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

729351042 is a wasteful number, since it uses less digits than its factorization.

729351042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 729351042 is about 27006.4999953715. The cubic root of 729351042 is about 900.1444385466.

The spelling of 729351042 in words is "seven hundred twenty-nine million, three hundred fifty-one thousand, forty-two".