571213242 has 16 divisors (see below), whose sum is σ = 1269362880. Its totient is φ = 190404396.

The previous prime is 571213241. The next prime is 571213273. The reversal of 571213242 is 242312175.

571213242 is a `hidden beast` number, since 571 + 21 + 32 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (571213241) by changing a digit.

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, 5288958 + ... + 5289065.

It is an arithmetic number, because the mean of its divisors is an integer number (79335180).

Almost surely, 2^571213242 is an apocalyptic number.

571213242 is an abundant number, since it is smaller than the sum of its proper divisors (698149638).

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

571213242 is a wasteful number, since it uses less digits than its factorization.

571213242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10578034 (or 10578028 counting only the distinct ones).

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

The square root of 571213242 is about 23900.0678241715. The cubic root of 571213242 is about 829.7222867281.

The spelling of 571213242 in words is "five hundred seventy-one million, two hundred thirteen thousand, two hundred forty-two".