445252144242 has 8 divisors (see below), whose sum is σ = 890504288496. Its totient is φ = 148417381412.

The previous prime is 445252144241. The next prime is 445252144273. The reversal of 445252144242 is 242441252544.

It is a sphenic number, since it is the product of 3 distinct primes.

445252144242 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 445252144242.

It is not an unprimeable number, because it can be changed into a prime (445252144241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 37104345348 + ... + 37104345359.

It is an arithmetic number, because the mean of its divisors is an integer number (111313036062).

Almost surely, 2^445252144242 is an apocalyptic number.

445252144242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445252144242 is a wasteful number, since it uses less digits than its factorization.

445252144242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74208690712.

The product of its digits is 409600, while the sum is 39.

Adding to 445252144242 its reverse (242441252544), we get a palindrome (687693396786).

The spelling of 445252144242 in words is "four hundred forty-five billion, two hundred fifty-two million, one hundred forty-four thousand, two hundred forty-two".