729520242 has 16 divisors (see below), whose sum is σ = 1591680672. Its totient is φ = 221066720.

The previous prime is 729520237. The next prime is 729520247. The reversal of 729520242 is 242025927.

It is an interprime number because it is at equal distance from previous prime (729520237) and next prime (729520247).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (729520247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5526603 + ... + 5526734.

It is an arithmetic number, because the mean of its divisors is an integer number (99480042).

Almost surely, 2^729520242 is an apocalyptic number.

729520242 is an abundant number, since it is smaller than the sum of its proper divisors (862160430).

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

729520242 is a wasteful number, since it uses less digits than its factorization.

729520242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11053353.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 729520242 is about 27009.6323929075. The cubic root of 729520242 is about 900.2140404503.

The spelling of 729520242 in words is "seven hundred twenty-nine million, five hundred twenty thousand, two hundred forty-two".