445322021200 has 60 divisors (see below), whose sum is σ = 1222727043040. Its totient is φ = 152681834880.

The previous prime is 445322021197. The next prime is 445322021201. The reversal of 445322021200 is 2120223544.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445322021201) 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 11 ways as a sum of consecutive naturals, for example, 79518990 + ... + 79524589.

Almost surely, 2^445322021200 is an apocalyptic number.

445322021200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445322021200 is an abundant number, since it is smaller than the sum of its proper divisors (777405021840).

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

445322021200 is a wasteful number, since it uses less digits than its factorization.

445322021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159043604 (or 159043593 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 445322021200 its reverse (2120223544), we get a palindrome (447442244744).

The spelling of 445322021200 in words is "four hundred forty-five billion, three hundred twenty-two million, twenty-one thousand, two hundred".