442138469608 has 32 divisors (see below), whose sum is σ = 906980470560. Its totient is φ = 200392847680.

The previous prime is 442138469599. The next prime is 442138469621. The reversal of 442138469608 is 806964831244.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7209091 + ... + 7270162.

It is an arithmetic number, because the mean of its divisors is an integer number (28343139705).

Almost surely, 2^442138469608 is an apocalyptic number.

It is an amenable number.

442138469608 is an abundant number, since it is smaller than the sum of its proper divisors (464842000952).

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

442138469608 is a wasteful number, since it uses less digits than its factorization.

442138469608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14479617 (or 14479613 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 55.

The spelling of 442138469608 in words is "four hundred forty-two billion, one hundred thirty-eight million, four hundred sixty-nine thousand, six hundred eight".