445045424242 has 12 divisors (see below), whose sum is σ = 697854783150. Its totient is φ = 212847811088.

The previous prime is 445045424237. The next prime is 445045424261. The reversal of 445045424242 is 242424540544.

It can be written as a sum of positive squares in only one way, i.e., 274922997561 + 170122426681 = 524331^2 + 412459^2 .

It is a super-2 number, since 2×445045424242² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445045424195 and 445045424204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210322867 + ... + 210324982.

Almost surely, 2^445045424242 is an apocalyptic number.

445045424242 is a deficient number, since it is larger than the sum of its proper divisors (252809358908).

445045424242 is a wasteful number, since it uses less digits than its factorization.

445045424242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420647897 (or 420647874 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 40.

Adding to 445045424242 its reverse (242424540544), we get a palindrome (687469964786).

The spelling of 445045424242 in words is "four hundred forty-five billion, forty-five million, four hundred twenty-four thousand, two hundred forty-two".