442907841 has 8 divisors (see below), whose sum is σ = 621625120. Its totient is φ = 279731232.

The previous prime is 442907827. The next prime is 442907887. The reversal of 442907841 is 148709244.

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

It is not a de Polignac number, because 442907841 - 2⁷ = 442907713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442907841.

It is not an unprimeable number, because it can be changed into a prime (442907441) 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, 3885100 + ... + 3885213.

It is an arithmetic number, because the mean of its divisors is an integer number (77703140).

Almost surely, 2^442907841 is an apocalyptic number.

It is an amenable number.

442907841 is a deficient number, since it is larger than the sum of its proper divisors (178717279).

442907841 is a wasteful number, since it uses less digits than its factorization.

442907841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770335.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 442907841 is about 21045.3757628606. The cubic root of 442907841 is about 762.2623269277.

The spelling of 442907841 in words is "four hundred forty-two million, nine hundred seven thousand, eight hundred forty-one".