729142884 has 42 divisors (see below), whose sum is σ = 1913132550. Its totient is φ = 243046656.

The previous prime is 729142859. The next prime is 729142891. The reversal of 729142884 is 488241927.

It can be written as a sum of positive squares in only one way, i.e., 729000000 + 142884 = 27000^2 + 378^2 .

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 122109 + ... + 127940.

It is an arithmetic number, because the mean of its divisors is an integer number (45550775).

Almost surely, 2^729142884 is an apocalyptic number.

It is an amenable number.

729142884 is an abundant number, since it is smaller than the sum of its proper divisors (1183989666).

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

729142884 is a wasteful number, since it uses less digits than its factorization.

729142884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250071 (or 250054 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 729142884 is about 27002.6458703587. The cubic root of 729142884 is about 900.0587961588.

It can be divided in two parts, 729 and 142884, that multiplied together give a square (104162436 = 10206²).

The spelling of 729142884 in words is "seven hundred twenty-nine million, one hundred forty-two thousand, eight hundred eighty-four".