445221435020 has 24 divisors (see below), whose sum is σ = 944222097168. Its totient is φ = 176325320000.

The previous prime is 445221435019. The next prime is 445221435041. The reversal of 445221435020 is 20534122544.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110201306 + ... + 110205345.

It is an arithmetic number, because the mean of its divisors is an integer number (39342587382).

Almost surely, 2^445221435020 is an apocalyptic number.

It is an amenable number.

445221435020 is an abundant number, since it is smaller than the sum of its proper divisors (499000662148).

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

445221435020 is a wasteful number, since it uses less digits than its factorization.

445221435020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220406761 (or 220406759 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 445221435020 its reverse (20534122544), we get a palindrome (465755557564).

The spelling of 445221435020 in words is "four hundred forty-five billion, two hundred twenty-one million, four hundred thirty-five thousand, twenty".