442681359 has 4 divisors (see below), whose sum is σ = 590241816. Its totient is φ = 295120904.

The previous prime is 442681313. The next prime is 442681397. The reversal of 442681359 is 953186244.

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

It is a cyclic number.

It is not a de Polignac number, because 442681359 - 2¹⁷ = 442550287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442681359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442181359) 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, 73780224 + ... + 73780229.

It is an arithmetic number, because the mean of its divisors is an integer number (147560454).

Almost surely, 2^442681359 is an apocalyptic number.

442681359 is a deficient number, since it is larger than the sum of its proper divisors (147560457).

442681359 is a wasteful number, since it uses less digits than its factorization.

442681359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147560456.

The product of its digits is 207360, while the sum is 42.

The square root of 442681359 is about 21039.9942728129. The cubic root of 442681359 is about 762.1323765445.

The spelling of 442681359 in words is "four hundred forty-two million, six hundred eighty-one thousand, three hundred fifty-nine".