572646728 has 8 divisors (see below), whose sum is σ = 1073712630. Its totient is φ = 286323360.

The previous prime is 572646727. The next prime is 572646733. The reversal of 572646728 is 827646275.

It can be written as a sum of positive squares in only one way, i.e., 547466404 + 25180324 = 23398^2 + 5018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (572646727) 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 as a sum of consecutive naturals, namely, 35790413 + ... + 35790428.

Almost surely, 2^572646728 is an apocalyptic number.

It is an amenable number.

572646728 is a deficient number, since it is larger than the sum of its proper divisors (501065902).

572646728 is a wasteful number, since it uses less digits than its factorization.

572646728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71580847 (or 71580843 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 47.

The square root of 572646728 is about 23930.0381947042. The cubic root of 572646728 is about 830.4157823919.

The spelling of 572646728 in words is "five hundred seventy-two million, six hundred forty-six thousand, seven hundred twenty-eight".