572020640 has 48 divisors (see below), whose sum is σ = 1365367752. Its totient is φ = 226443264.

The previous prime is 572020637. The next prime is 572020661. The reversal of 572020640 is 46020275.

It can be written as a sum of positive squares in 4 ways, for example, as 469848976 + 102171664 = 21676^2 + 10108^2 .

It is a super-2 number, since 2×572020640² = 654415225172019200, which contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2909 + ... + 33948.

Almost surely, 2^572020640 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 572020640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682683876).

572020640 is an abundant number, since it is smaller than the sum of its proper divisors (793347112).

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

572020640 is a wasteful number, since it uses less digits than its factorization.

572020640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36969 (or 36961 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 572020640 is about 23916.9529831875. The cubic root of 572020640 is about 830.1130343951.

The spelling of 572020640 in words is "five hundred seventy-two million, twenty thousand, six hundred forty".