442318271 has 8 divisors (see below), whose sum is σ = 468726000. Its totient is φ = 416223360.

The previous prime is 442318249. The next prime is 442318301. The reversal of 442318271 is 172813244.

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-442318271 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 (442318241) 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, 75290 + ... + 80951.

It is an arithmetic number, because the mean of its divisors is an integer number (58590750).

Almost surely, 2^442318271 is an apocalyptic number.

442318271 is a deficient number, since it is larger than the sum of its proper divisors (26407729).

442318271 is a wasteful number, since it uses less digits than its factorization.

442318271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156409.

The product of its digits is 10752, while the sum is 32.

The square root of 442318271 is about 21031.3639833464. The cubic root of 442318271 is about 761.9239521289.

The spelling of 442318271 in words is "four hundred forty-two million, three hundred eighteen thousand, two hundred seventy-one".