729129452 has 12 divisors (see below), whose sum is σ = 1276468200. Its totient is φ = 364424256.

The previous prime is 729129451. The next prime is 729129461. The reversal of 729129452 is 254921927.

It is not an unprimeable number, because it can be changed into a prime (729129451) 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 3 ways as a sum of consecutive naturals, for example, 22973 + ... + 44564.

It is an arithmetic number, because the mean of its divisors is an integer number (106372350).

Almost surely, 2^729129452 is an apocalyptic number.

It is an amenable number.

729129452 is a deficient number, since it is larger than the sum of its proper divisors (547338748).

729129452 is a wasteful number, since it uses less digits than its factorization.

729129452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70240 (or 70238 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 729129452 is about 27002.3971528455. The cubic root of 729129452 is about 900.0532692750.

The spelling of 729129452 in words is "seven hundred twenty-nine million, one hundred twenty-nine thousand, four hundred fifty-two".