572128542 has 64 divisors (see below), whose sum is σ = 1332264960. Its totient is φ = 181649952.

The previous prime is 572128499. The next prime is 572128549. The reversal of 572128542 is 245821275.

It is a happy number.

572128542 is a `hidden beast` number, since 572 + 1 + 2 + 85 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 572128497 and 572128506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572128549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343203 + ... + 344865.

It is an arithmetic number, because the mean of its divisors is an integer number (20816640).

Almost surely, 2^572128542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 572128542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666132480).

572128542 is an abundant number, since it is smaller than the sum of its proper divisors (760136418).

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

572128542 is a wasteful number, since it uses less digits than its factorization.

572128542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974 (or 1968 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 572128542 is about 23919.2086407557. The cubic root of 572128542 is about 830.1652266990.

The spelling of 572128542 in words is "five hundred seventy-two million, one hundred twenty-eight thousand, five hundred forty-two".