442420207 has 8 divisors (see below), whose sum is σ = 444579840. Its totient is φ = 440266680.

The previous prime is 442420171. The next prime is 442420213. The reversal of 442420207 is 702024244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442420207 - 2⁷ = 442420079 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 (442420247) 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, 205378 + ... + 207520.

It is an arithmetic number, because the mean of its divisors is an integer number (55572480).

Almost surely, 2^442420207 is an apocalyptic number.

442420207 is a deficient number, since it is larger than the sum of its proper divisors (2159633).

442420207 is a wasteful number, since it uses less digits than its factorization.

442420207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053.

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 442420207 is about 21033.7872719109. The cubic root of 442420207 is about 761.9824782472.

The spelling of 442420207 in words is "four hundred forty-two million, four hundred twenty thousand, two hundred seven".