571264642 has 16 divisors (see below), whose sum is σ = 934496640. Its totient is φ = 260322192.

The previous prime is 571264637. The next prime is 571264693. The reversal of 571264642 is 246462175.

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, 137008 + ... + 141115.

It is an arithmetic number, because the mean of its divisors is an integer number (58406040).

Almost surely, 2^571264642 is an apocalyptic number.

571264642 is a deficient number, since it is larger than the sum of its proper divisors (363231998).

571264642 is a wasteful number, since it uses less digits than its factorization.

571264642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278217.

The product of its digits is 80640, while the sum is 37.

The square root of 571264642 is about 23901.1431107384. The cubic root of 571264642 is about 829.7471731997.

The spelling of 571264642 in words is "five hundred seventy-one million, two hundred sixty-four thousand, six hundred forty-two".