442495871 has 2 divisors, whose sum is σ = 442495872. Its totient is φ = 442495870.

The previous prime is 442495853. The next prime is 442495897. The reversal of 442495871 is 178594244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442495871 - 2¹⁴ = 442479487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442495841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221247935 + 221247936.

It is an arithmetic number, because the mean of its divisors is an integer number (221247936).

Almost surely, 2^442495871 is an apocalyptic number.

442495871 is a deficient number, since it is larger than the sum of its proper divisors (1).

442495871 is an equidigital number, since it uses as much as digits as its factorization.

442495871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 44.

The square root of 442495871 is about 21035.5858249776. The cubic root of 442495871 is about 762.0259145964.

The spelling of 442495871 in words is "four hundred forty-two million, four hundred ninety-five thousand, eight hundred seventy-one".