572016420 has 72 divisors (see below), whose sum is σ = 1777459320. Its totient is φ = 148815360.

The previous prime is 572016407. The next prime is 572016427. The reversal of 572016420 is 24610275.

It can be written as a sum of positive squares in 4 ways, for example, as 78110244 + 493906176 = 8838^2 + 22224^2 .

It is not an unprimeable number, because it can be changed into a prime (572016427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31375 + ... + 46134.

It is an arithmetic number, because the mean of its divisors is an integer number (24686935).

Almost surely, 2^572016420 is an apocalyptic number.

It is an amenable number.

572016420 is an abundant number, since it is smaller than the sum of its proper divisors (1205442900).

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

572016420 is a wasteful number, since it uses less digits than its factorization.

572016420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77565 (or 77560 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 572016420 is about 23916.8647610844. The cubic root of 572016420 is about 830.1109930436.

Adding to 572016420 its reverse (24610275), we get a palindrome (596626695).

The spelling of 572016420 in words is "five hundred seventy-two million, sixteen thousand, four hundred twenty".