442564344 has 64 divisors (see below), whose sum is σ = 1282809600. Its totient is φ = 141105888.

The previous prime is 442564327. The next prime is 442564357. The reversal of 442564344 is 443465244.

442564344 is a `hidden beast` number, since 4 + 4 + 2 + 5 + 643 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 442564299 and 442564308.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 39574 + ... + 49509.

It is an arithmetic number, because the mean of its divisors is an integer number (20043900).

Almost surely, 2^442564344 is an apocalyptic number.

It is an amenable number.

442564344 is an abundant number, since it is smaller than the sum of its proper divisors (840245256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442564344 is a wasteful number, since it uses less digits than its factorization.

442564344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89121 (or 89111 counting only the distinct ones).

The product of its digits is 184320, while the sum is 36.

The square root of 442564344 is about 21037.2133135546. The cubic root of 442564344 is about 762.0652185483.

The spelling of 442564344 in words is "four hundred forty-two million, five hundred sixty-four thousand, three hundred forty-four".