442889227 has 8 divisors (see below), whose sum is σ = 485176320. Its totient is φ = 400939560.

The previous prime is 442889203. The next prime is 442889243. The reversal of 442889227 is 722988244.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442889227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442889527) 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, 81603 + ... + 86860.

It is an arithmetic number, because the mean of its divisors is an integer number (60647040).

Almost surely, 2^442889227 is an apocalyptic number.

442889227 is a deficient number, since it is larger than the sum of its proper divisors (42287093).

442889227 is a wasteful number, since it uses less digits than its factorization.

442889227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168713.

The product of its digits is 516096, while the sum is 46.

The square root of 442889227 is about 21044.9335232972. The cubic root of 442889227 is about 762.2516482956.

The spelling of 442889227 in words is "four hundred forty-two million, eight hundred eighty-nine thousand, two hundred twenty-seven".