572752728 has 64 divisors (see below), whose sum is σ = 1603584000. Its totient is φ = 189405216.

The previous prime is 572752727. The next prime is 572752757. The reversal of 572752728 is 827257275.

572752728 is a `hidden beast` number, since 572 + 7 + 5 + 2 + 72 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572752723) 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 15 ways as a sum of consecutive naturals, for example, 16993 + ... + 37871.

It is an arithmetic number, because the mean of its divisors is an integer number (25056000).

Almost surely, 2^572752728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 572752728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801792000).

572752728 is an abundant number, since it is smaller than the sum of its proper divisors (1030831272).

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

572752728 is a wasteful number, since it uses less digits than its factorization.

572752728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21021 (or 21011 counting only the distinct ones).

The product of its digits is 548800, while the sum is 45.

The square root of 572752728 is about 23932.2528818329. The cubic root of 572752728 is about 830.4670173785.

The spelling of 572752728 in words is "five hundred seventy-two million, seven hundred fifty-two thousand, seven hundred twenty-eight".