442889941 has 8 divisors (see below), whose sum is σ = 477160544. Its totient is φ = 408648240.

The previous prime is 442889929. The next prime is 442889947. The reversal of 442889941 is 149988244.

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

It is not a de Polignac number, because 442889941 - 2²¹ = 440792789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442889947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32890 + ... + 44356.

It is an arithmetic number, because the mean of its divisors is an integer number (59645068).

Almost surely, 2^442889941 is an apocalyptic number.

It is an amenable number.

442889941 is a deficient number, since it is larger than the sum of its proper divisors (34270603).

442889941 is a wasteful number, since it uses less digits than its factorization.

442889941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14451.

The product of its digits is 663552, while the sum is 49.

The square root of 442889941 is about 21044.9504869933. The cubic root of 442889941 is about 762.2520579145.

The spelling of 442889941 in words is "four hundred forty-two million, eight hundred eighty-nine thousand, nine hundred forty-one".