442444245 has 32 divisors (see below), whose sum is σ = 743178240. Its totient is φ = 224473920.

The previous prime is 442444231. The next prime is 442444253. The reversal of 442444245 is 542444244.

It is a happy number.

It is not a de Polignac number, because 442444245 - 2⁹ = 442443733 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 19372 + ... + 35498.

It is an arithmetic number, because the mean of its divisors is an integer number (23224320).

Almost surely, 2^442444245 is an apocalyptic number.

It is an amenable number.

442444245 is a deficient number, since it is larger than the sum of its proper divisors (300733995).

442444245 is a wasteful number, since it uses less digits than its factorization.

442444245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16225.

The product of its digits is 81920, while the sum is 33.

The square root of 442444245 is about 21034.3586781247. The cubic root of 442444245 is about 761.9962782522.

Adding to 442444245 its reverse (542444244), we get a palindrome (984888489).

Subtracting 442444245 from its reverse (542444244), we obtain a palindrome (99999999).

The spelling of 442444245 in words is "four hundred forty-two million, four hundred forty-four thousand, two hundred forty-five".