42244571 has 4 divisors (see below), whose sum is σ = 42310512. Its totient is φ = 42178632.

The previous prime is 42244549. The next prime is 42244597. The reversal of 42244571 is 17544224.

42244571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42244571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42244171) by changing a digit.

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, 32000 + ... + 33293.

It is an arithmetic number, because the mean of its divisors is an integer number (10577628).

Almost surely, 2^42244571 is an apocalyptic number.

42244571 is a deficient number, since it is larger than the sum of its proper divisors (65941).

42244571 is an equidigital number, since it uses as much as digits as its factorization.

42244571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65940.

The product of its digits is 8960, while the sum is 29.

The square root of 42244571 is about 6499.5823711989. The cubic root of 42244571 is about 348.2760696346.

Adding to 42244571 its reverse (17544224), we get a palindrome (59788795).

The spelling of 42244571 in words is "forty-two million, two hundred forty-four thousand, five hundred seventy-one".