442421004745 has 8 divisors (see below), whose sum is σ = 562134923784. Its totient is φ = 333116991744.

The previous prime is 442421004719. The next prime is 442421004763. The reversal of 442421004745 is 547400124244.

It can be written as a sum of positive squares in 4 ways, for example, as 42167390409 + 400253614336 = 205347^2 + 632656^2 .

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 442421004745 - 2⁵ = 442421004713 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 2602476414 + ... + 2602476583.

It is an arithmetic number, because the mean of its divisors is an integer number (70266865473).

Almost surely, 2^442421004745 is an apocalyptic number.

It is an amenable number.

442421004745 is a deficient number, since it is larger than the sum of its proper divisors (119713919039).

442421004745 is a wasteful number, since it uses less digits than its factorization.

442421004745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204953019.

The product of its (nonzero) digits is 143360, while the sum is 37.

Adding to 442421004745 its reverse (547400124244), we get a palindrome (989821128989).

The spelling of 442421004745 in words is "four hundred forty-two billion, four hundred twenty-one million, four thousand, seven hundred forty-five".