729816072 has 32 divisors (see below), whose sum is σ = 1869043680. Its totient is φ = 237338240.

The previous prime is 729816067. The next prime is 729816089. The reversal of 729816072 is 270618927.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369858 + ... + 371825.

It is an arithmetic number, because the mean of its divisors is an integer number (58407615).

Almost surely, 2^729816072 is an apocalyptic number.

It is an amenable number.

729816072 is an abundant number, since it is smaller than the sum of its proper divisors (1139227608).

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

729816072 is a wasteful number, since it uses less digits than its factorization.

729816072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741733 (or 741729 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 729816072 is about 27015.1082174401. The cubic root of 729816072 is about 900.3357068620.

The spelling of 729816072 in words is "seven hundred twenty-nine million, eight hundred sixteen thousand, seventy-two".