420445221330 has 16 divisors (see below), whose sum is σ = 1009068531264. Its totient is φ = 112118725680.

The previous prime is 420445221319. The next prime is 420445221347. The reversal of 420445221330 is 33122544024.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 14014840711 = 420445221330 / (4 + 2 + 0 + 4 + 4 + 5 + 2 + 2 + 1 + 3 + 3 + 0).

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, 7007420326 + ... + 7007420385.

It is an arithmetic number, because the mean of its divisors is an integer number (63066783204).

Almost surely, 2^420445221330 is an apocalyptic number.

420445221330 is an abundant number, since it is smaller than the sum of its proper divisors (588623309934).

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

420445221330 is a wasteful number, since it uses less digits than its factorization.

420445221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14014840721.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 420445221330 its reverse (33122544024), we get a palindrome (453567765354).

The spelling of 420445221330 in words is "four hundred twenty billion, four hundred forty-five million, two hundred twenty-one thousand, three hundred thirty".