421420304441320 has 128 divisors (see below), whose sum is σ = 962221672431360. Its totient is φ = 166094716262400.

The previous prime is 421420304441317. The next prime is 421420304441327. The reversal of 421420304441320 is 23144403024124.

It is not an unprimeable number, because it can be changed into a prime (421420304441327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1023386907 + ... + 1023798613.

It is an arithmetic number, because the mean of its divisors is an integer number (7517356815870).

Almost surely, 2^{421420304441320} is an apocalyptic number.

421420304441320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421420304441320 is an abundant number, since it is smaller than the sum of its proper divisors (540801367990040).

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

421420304441320 is a wasteful number, since it uses less digits than its factorization.

421420304441320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413243 (or 413239 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 421420304441320 its reverse (23144403024124), we get a palindrome (444564707465444).

The spelling of 421420304441320 in words is "four hundred twenty-one trillion, four hundred twenty billion, three hundred four million, four hundred forty-one thousand, three hundred twenty".