729142224 has 40 divisors (see below), whose sum is σ = 1884775200. Its totient is φ = 242898048.

The previous prime is 729142217. The next prime is 729142229. The reversal of 729142224 is 422241927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729142229) 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, 97134 + ... + 104370.

It is an arithmetic number, because the mean of its divisors is an integer number (47119380).

Almost surely, 2^729142224 is an apocalyptic number.

It is an amenable number.

729142224 is an abundant number, since it is smaller than the sum of its proper divisors (1155632976).

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

729142224 is a wasteful number, since it uses less digits than its factorization.

729142224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9347 (or 9341 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 729142224 is about 27002.6336493313. The cubic root of 729142224 is about 900.0585245893.

The spelling of 729142224 in words is "seven hundred twenty-nine million, one hundred forty-two thousand, two hundred twenty-four".