728302128 has 20 divisors (see below), whose sum is σ = 1881447288. Its totient is φ = 242767360.

The previous prime is 728302123. The next prime is 728302171. The reversal of 728302128 is 821203827.

It is not an unprimeable number, because it can be changed into a prime (728302121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7586433 + ... + 7586528.

Almost surely, 2^728302128 is an apocalyptic number.

It is an amenable number.

728302128 is an abundant number, since it is smaller than the sum of its proper divisors (1153145160).

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

728302128 is a wasteful number, since it uses less digits than its factorization.

728302128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15172972 (or 15172966 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 728302128 is about 26987.0733500319. The cubic root of 728302128 is about 899.7127181854.

The spelling of 728302128 in words is "seven hundred twenty-eight million, three hundred two thousand, one hundred twenty-eight".