442405438630 has 48 divisors (see below), whose sum is σ = 840732150384. Its totient is φ = 167591655360.

The previous prime is 442405438613. The next prime is 442405438681. The reversal of 442405438630 is 36834504244.

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 23 ways as a sum of consecutive naturals, for example, 11543700 + ... + 11581960.

It is an arithmetic number, because the mean of its divisors is an integer number (17515253133).

Almost surely, 2^442405438630 is an apocalyptic number.

442405438630 is a deficient number, since it is larger than the sum of its proper divisors (398326711754).

442405438630 is a wasteful number, since it uses less digits than its factorization.

442405438630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41509 (or 41490 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 43.

The spelling of 442405438630 in words is "four hundred forty-two billion, four hundred five million, four hundred thirty-eight thousand, six hundred thirty".