442441417 has 4 divisors (see below), whose sum is σ = 482663376. Its totient is φ = 402219460.

The previous prime is 442441327. The next prime is 442441453. The reversal of 442441417 is 714144244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442441417 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442441477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20110963 + ... + 20110984.

It is an arithmetic number, because the mean of its divisors is an integer number (120665844).

Almost surely, 2^442441417 is an apocalyptic number.

It is an amenable number.

442441417 is a deficient number, since it is larger than the sum of its proper divisors (40221959).

442441417 is a wasteful number, since it uses less digits than its factorization.

442441417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40221958.

The product of its digits is 14336, while the sum is 31.

The square root of 442441417 is about 21034.2914546699. The cubic root of 442441417 is about 761.9946547481.

The spelling of 442441417 in words is "four hundred forty-two million, four hundred forty-one thousand, four hundred seventeen".