728560236 has 24 divisors (see below), whose sum is σ = 1773886464. Its totient is φ = 232294480.

The previous prime is 728560193. The next prime is 728560237. The reversal of 728560236 is 632065827.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 728560194 and 728560203.

It is not an unprimeable number, because it can be changed into a prime (728560237) 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 7 ways as a sum of consecutive naturals, for example, 1319580 + ... + 1320131.

It is an arithmetic number, because the mean of its divisors is an integer number (73911936).

Almost surely, 2^728560236 is an apocalyptic number.

It is an amenable number.

728560236 is an abundant number, since it is smaller than the sum of its proper divisors (1045326228).

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

728560236 is a wasteful number, since it uses less digits than its factorization.

728560236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639741 (or 2639739 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 728560236 is about 26991.8549936828. The cubic root of 728560236 is about 899.8189907581.

The spelling of 728560236 in words is "seven hundred twenty-eight million, five hundred sixty thousand, two hundred thirty-six".