442571413 has 4 divisors (see below), whose sum is σ = 445755520. Its totient is φ = 439387308.

The previous prime is 442571383. The next prime is 442571417. The reversal of 442571413 is 314175244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442571413 - 2⁹ = 442570901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442571417) 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, 1591845 + ... + 1592122.

It is an arithmetic number, because the mean of its divisors is an integer number (111438880).

Almost surely, 2^442571413 is an apocalyptic number.

It is an amenable number.

442571413 is a deficient number, since it is larger than the sum of its proper divisors (3184107).

442571413 is a wasteful number, since it uses less digits than its factorization.

442571413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184106.

The product of its digits is 13440, while the sum is 31.

The square root of 442571413 is about 21037.3813246801. The cubic root of 442571413 is about 762.0692759699.

The spelling of 442571413 in words is "four hundred forty-two million, five hundred seventy-one thousand, four hundred thirteen".