571623242 has 4 divisors (see below), whose sum is σ = 857434866. Its totient is φ = 285811620.

The previous prime is 571623203. The next prime is 571623289. The reversal of 571623242 is 242326175.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 571162201 + 461041 = 23899^2 + 679^2 .

It is a junction number, because it is equal to n+sod(n) for n = 571623199 and 571623208.

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 as a sum of consecutive naturals, namely, 142905809 + ... + 142905812.

Almost surely, 2^571623242 is an apocalyptic number.

571623242 is a deficient number, since it is larger than the sum of its proper divisors (285811624).

571623242 is a wasteful number, since it uses less digits than its factorization.

571623242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285811623.

The product of its digits is 20160, while the sum is 32.

The square root of 571623242 is about 23908.6436670925. The cubic root of 571623242 is about 829.9207559705.

The spelling of 571623242 in words is "five hundred seventy-one million, six hundred twenty-three thousand, two hundred forty-two".