572217628 has 12 divisors (see below), whose sum is σ = 1001571480. Its totient is φ = 286054352.

The previous prime is 572217601. The next prime is 572217629. The reversal of 572217628 is 826712275.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572217629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18375 + ... + 38497.

It is an arithmetic number, because the mean of its divisors is an integer number (83464290).

Almost surely, 2^572217628 is an apocalyptic number.

It is an amenable number.

572217628 is a deficient number, since it is larger than the sum of its proper divisors (429353852).

572217628 is a wasteful number, since it uses less digits than its factorization.

572217628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27236 (or 27234 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 572217628 is about 23921.0707954305. The cubic root of 572217628 is about 830.2083127398.

The spelling of 572217628 in words is "five hundred seventy-two million, two hundred seventeen thousand, six hundred twenty-eight".