571428020 has 12 divisors (see below), whose sum is σ = 1199998884. Its totient is φ = 228571200.

The previous prime is 571428019. The next prime is 571428047. The reversal of 571428020 is 20824175.

It can be written as a sum of positive squares in 2 ways, for example, as 287438116 + 283989904 = 16954^2 + 16852^2 .

It is a super-2 number, since 2×571428020² = 653059964082240800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14285681 + ... + 14285720.

It is an arithmetic number, because the mean of its divisors is an integer number (99999907).

Almost surely, 2^571428020 is an apocalyptic number.

It is an amenable number.

571428020 is an abundant number, since it is smaller than the sum of its proper divisors (628570864).

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

571428020 is a wasteful number, since it uses less digits than its factorization.

571428020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28571410 (or 28571408 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 571428020 is about 23904.5606527290. The cubic root of 571428020 is about 829.8262664386.

The spelling of 571428020 in words is "five hundred seventy-one million, four hundred twenty-eight thousand, twenty".