442605941394 has 64 divisors (see below), whose sum is σ = 910421576064. Its totient is φ = 143387718656.

The previous prime is 442605941381. The next prime is 442605941413. The reversal of 442605941394 is 493149506244.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106470364 + ... + 106474520.

It is an arithmetic number, because the mean of its divisors is an integer number (14225337126).

Almost surely, 2^442605941394 is an apocalyptic number.

442605941394 is an abundant number, since it is smaller than the sum of its proper divisors (467815634670).

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

442605941394 is a wasteful number, since it uses less digits than its factorization.

442605941394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7291.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 442605941394 in words is "four hundred forty-two billion, six hundred five million, nine hundred forty-one thousand, three hundred ninety-four".