442201447 has 4 divisors (see below), whose sum is σ = 442280160. Its totient is φ = 442122736.

The previous prime is 442201439. The next prime is 442201451. The reversal of 442201447 is 744102244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442201447 - 2³ = 442201439 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 (442201457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30223 + ... + 42400.

It is an arithmetic number, because the mean of its divisors is an integer number (110570040).

Almost surely, 2^442201447 is an apocalyptic number.

442201447 is a deficient number, since it is larger than the sum of its proper divisors (78713).

442201447 is an equidigital number, since it uses as much as digits as its factorization.

442201447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78712.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 442201447 is about 21028.5864241988. The cubic root of 442201447 is about 761.8568670703.

The spelling of 442201447 in words is "four hundred forty-two million, two hundred one thousand, four hundred forty-seven".