445301644242 has 192 divisors, whose sum is σ = 1165726162944. Its totient is φ = 112189714560.

The previous prime is 445301644231. The next prime is 445301644279. The reversal of 445301644242 is 242446103544.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 445301644242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77969767 + ... + 77975477.

It is an arithmetic number, because the mean of its divisors is an integer number (6071490432).

Almost surely, 2^445301644242 is an apocalyptic number.

445301644242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 445301644242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582863081472).

445301644242 is an abundant number, since it is smaller than the sum of its proper divisors (720424518702).

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

445301644242 is a wasteful number, since it uses less digits than its factorization.

445301644242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6653 (or 6646 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 39.

Adding to 445301644242 its reverse (242446103544), we get a palindrome (687747747786).

The spelling of 445301644242 in words is "four hundred forty-five billion, three hundred one million, six hundred forty-four thousand, two hundred forty-two".