572321880 has 288 divisors, whose sum is σ = 2106842400. Its totient is φ = 134424576.

The previous prime is 572321833. The next prime is 572321909. The reversal of 572321880 is 88123275.

572321880 is a `hidden beast` number, since 572 + 3 + 2 + 1 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1399116 + ... + 1399524.

It is an arithmetic number, because the mean of its divisors is an integer number (7315425).

Almost surely, 2^572321880 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 572321880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053421200).

572321880 is an abundant number, since it is smaller than the sum of its proper divisors (1534520520).

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

572321880 is a wasteful number, since it uses less digits than its factorization.

572321880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 572321880 is about 23923.2497792419. The cubic root of 572321880 is about 830.2587280697.

The spelling of 572321880 in words is "five hundred seventy-two million, three hundred twenty-one thousand, eight hundred eighty".