728506572 has 24 divisors (see below), whose sum is σ = 1754683392. Its totient is φ = 235002000.

The previous prime is 728506549. The next prime is 728506601. The reversal of 728506572 is 275605827.

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, 978804 + ... + 979547.

It is an arithmetic number, because the mean of its divisors is an integer number (73111808).

Almost surely, 2^728506572 is an apocalyptic number.

It is an amenable number.

728506572 is an abundant number, since it is smaller than the sum of its proper divisors (1026176820).

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

728506572 is a wasteful number, since it uses less digits than its factorization.

728506572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958389 (or 1958387 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 728506572 is about 26990.8608977187. The cubic root of 728506572 is about 899.7968973792.

The spelling of 728506572 in words is "seven hundred twenty-eight million, five hundred six thousand, five hundred seventy-two".