729542530 has 32 divisors (see below), whose sum is σ = 1358581248. Its totient is φ = 281769600.

The previous prime is 729542521. The next prime is 729542549. The reversal of 729542530 is 35245927.

It is a self number, because there is not a number n which added to its sum of digits gives 729542530.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 149814 + ... + 154606.

It is an arithmetic number, because the mean of its divisors is an integer number (42455664).

Almost surely, 2^729542530 is an apocalyptic number.

729542530 is a deficient number, since it is larger than the sum of its proper divisors (629038718).

729542530 is a wasteful number, since it uses less digits than its factorization.

729542530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 729542530 is about 27010.0449833020. The cubic root of 729542530 is about 900.2232080123.

The spelling of 729542530 in words is "seven hundred twenty-nine million, five hundred forty-two thousand, five hundred thirty".