729282928 has 40 divisors (see below), whose sum is σ = 1622574720. Its totient is φ = 314043840.

The previous prime is 729282907. The next prime is 729282937. The reversal of 729282928 is 829282927.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 105700 + ... + 112387.

It is an arithmetic number, because the mean of its divisors is an integer number (40564368).

Almost surely, 2^729282928 is an apocalyptic number.

It is an amenable number.

729282928 is an abundant number, since it is smaller than the sum of its proper divisors (893291792).

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

729282928 is a wasteful number, since it uses less digits than its factorization.

729282928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218125 (or 218119 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 729282928 is about 27005.2388991470. The cubic root of 729282928 is about 900.1164162165.

Subtracting 729282928 from its reverse (829282927), we obtain a palindrome (99999999).

The spelling of 729282928 in words is "seven hundred twenty-nine million, two hundred eighty-two thousand, nine hundred twenty-eight".