445524223320 has 256 divisors, whose sum is σ = 1620649036800. Its totient is φ = 107968481280.

The previous prime is 445524223253. The next prime is 445524223343. The reversal of 445524223320 is 23322425544.

445524223320 is a `hidden beast` number, since 44 + 55 + 24 + 223 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 51519237 + ... + 51527883.

It is an arithmetic number, because the mean of its divisors is an integer number (6330660300).

Almost surely, 2^445524223320 is an apocalyptic number.

445524223320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445524223320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (810324518400).

445524223320 is an abundant number, since it is smaller than the sum of its proper divisors (1175124813480).

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

445524223320 is a wasteful number, since it uses less digits than its factorization.

445524223320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13015 (or 13005 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 445524223320 its reverse (23322425544), we get a palindrome (468846648864).

The spelling of 445524223320 in words is "four hundred forty-five billion, five hundred twenty-four million, two hundred twenty-three thousand, three hundred twenty".