442146671 has 2 divisors, whose sum is σ = 442146672. Its totient is φ = 442146670.

The previous prime is 442146631. The next prime is 442146713. The reversal of 442146671 is 176641244.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442146671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442146631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221073335 + 221073336.

It is an arithmetic number, because the mean of its divisors is an integer number (221073336).

Almost surely, 2^442146671 is an apocalyptic number.

442146671 is a deficient number, since it is larger than the sum of its proper divisors (1).

442146671 is an equidigital number, since it uses as much as digits as its factorization.

442146671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 442146671 is about 21027.2839663139. The cubic root of 442146671 is about 761.8254084103.

The spelling of 442146671 in words is "four hundred forty-two million, one hundred forty-six thousand, six hundred seventy-one".