442116671 has 8 divisors (see below), whose sum is σ = 469993104. Its totient is φ = 414448000.

The previous prime is 442116641. The next prime is 442116679. The reversal of 442116671 is 176611244.

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-442116671 is a prime.

It is a super-2 number, since 2×442116671² = 390934301552244482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442116679) 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, 47540 + ... + 56073.

It is an arithmetic number, because the mean of its divisors is an integer number (58749138).

Almost surely, 2^442116671 is an apocalyptic number.

442116671 is a deficient number, since it is larger than the sum of its proper divisors (27876433).

442116671 is a wasteful number, since it uses less digits than its factorization.

442116671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103881.

The product of its digits is 8064, while the sum is 32.

The square root of 442116671 is about 21026.5705953206. The cubic root of 442116671 is about 761.8081778692.

The spelling of 442116671 in words is "four hundred forty-two million, one hundred sixteen thousand, six hundred seventy-one".