728270500 has 24 divisors (see below), whose sum is σ = 1590543864. Its totient is φ = 291308000.

The previous prime is 728270483. The next prime is 728270537. The reversal of 728270500 is 5072827.

It can be written as a sum of positive squares in 4 ways, for example, as 94439524 + 633830976 = 9718^2 + 25176^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727771 + ... + 728770.

It is an arithmetic number, because the mean of its divisors is an integer number (66272661).

Almost surely, 2^728270500 is an apocalyptic number.

It is an amenable number.

728270500 is an abundant number, since it is smaller than the sum of its proper divisors (862273364).

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

728270500 is a wasteful number, since it uses less digits than its factorization.

728270500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456560 (or 1456548 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 728270500 is about 26986.4873594175. The cubic root of 728270500 is about 899.6996940458.

The spelling of 728270500 in words is "seven hundred twenty-eight million, two hundred seventy thousand, five hundred".