442504838 has 8 divisors (see below), whose sum is σ = 675007560. Its totient is φ = 217502320.

The previous prime is 442504837. The next prime is 442504877. The reversal of 442504838 is 838405244.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442504831) 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 3 ways as a sum of consecutive naturals, for example, 1874903 + ... + 1875138.

It is an arithmetic number, because the mean of its divisors is an integer number (84375945).

Almost surely, 2^442504838 is an apocalyptic number.

442504838 is a deficient number, since it is larger than the sum of its proper divisors (232502722).

442504838 is a wasteful number, since it uses less digits than its factorization.

442504838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750102.

The product of its (nonzero) digits is 122880, while the sum is 38.

The square root of 442504838 is about 21035.7989627207. The cubic root of 442504838 is about 762.0310619441.

The spelling of 442504838 in words is "four hundred forty-two million, five hundred four thousand, eight hundred thirty-eight".