572669428 has 6 divisors (see below), whose sum is σ = 1002171506. Its totient is φ = 286334712.

The previous prime is 572669401. The next prime is 572669441. The reversal of 572669428 is 824966275.

It can be written as a sum of positive squares in only one way, i.e., 451052644 + 121616784 = 21238^2 + 11028^2 .

It is a super-3 number, since 3×572669428³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71583675 + ... + 71583682.

Almost surely, 2^572669428 is an apocalyptic number.

It is an amenable number.

572669428 is a deficient number, since it is larger than the sum of its proper divisors (429502078).

572669428 is a wasteful number, since it uses less digits than its factorization.

572669428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143167361 (or 143167359 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 572669428 is about 23930.5124892886. The cubic root of 572669428 is about 830.4267549446.

The spelling of 572669428 in words is "five hundred seventy-two million, six hundred sixty-nine thousand, four hundred twenty-eight".