442624439 has 8 divisors (see below), whose sum is σ = 452424960. Its totient is φ = 432929016.

The previous prime is 442624433. The next prime is 442624447. The reversal of 442624439 is 934426244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442624439 - 2⁴ = 442624423 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 (442624433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17729 + ... + 34634.

It is an arithmetic number, because the mean of its divisors is an integer number (56553120).

Almost surely, 2^442624439 is an apocalyptic number.

442624439 is a deficient number, since it is larger than the sum of its proper divisors (9800521).

442624439 is a wasteful number, since it uses less digits than its factorization.

442624439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52549.

The product of its digits is 165888, while the sum is 38.

The square root of 442624439 is about 21038.6415673636. The cubic root of 442624439 is about 762.0997101330.

The spelling of 442624439 in words is "four hundred forty-two million, six hundred twenty-four thousand, four hundred thirty-nine".