442117303 has 8 divisors (see below), whose sum is σ = 449100288. Its totient is φ = 435186264.

The previous prime is 442117301. The next prime is 442117331. The reversal of 442117303 is 303711244.

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

It is a cyclic number.

It is not a de Polignac number, because 442117303 - 2¹ = 442117301 is a prime.

It is a super-3 number, since 3×442117303³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442117301) 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, 4350 + ... + 30052.

It is an arithmetic number, because the mean of its divisors is an integer number (56137536).

Almost surely, 2^442117303 is an apocalyptic number.

442117303 is a deficient number, since it is larger than the sum of its proper divisors (6982985).

442117303 is a wasteful number, since it uses less digits than its factorization.

442117303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25973.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 442117303 is about 21026.5856239191. The cubic root of 442117303 is about 761.8085408673.

Adding to 442117303 its reverse (303711244), we get a palindrome (745828547).

The spelling of 442117303 in words is "four hundred forty-two million, one hundred seventeen thousand, three hundred three".