442207 has 2 divisors, whose sum is σ = 442208. Its totient is φ = 442206.

The previous prime is 442201. The next prime is 442217. The reversal of 442207 is 702244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442207 - 2¹¹ = 440159 is a prime.

442207 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221103 + 221104.

It is an arithmetic number, because the mean of its divisors is an integer number (221104).

2⁴⁴²²⁰⁷ is an apocalyptic number.

442207 is a deficient number, since it is larger than the sum of its proper divisors (1).

442207 is an equidigital number, since it uses as much as digits as its factorization.

442207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 442207 is about 664.9864660277. The cubic root of 442207 is about 76.1860056095.

The spelling of 442207 in words is "four hundred forty-two thousand, two hundred seven", and thus it is an iban number.