421341384450 has 96 divisors (see below), whose sum is σ = 1196096302080. Its totient is φ = 96153825600.

The previous prime is 421341384449. The next prime is 421341384463. The reversal of 421341384450 is 54483143124.

It is a junction number, because it is equal to n+sod(n) for n = 421341384399 and 421341384408.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 344581 + ... + 980519.

It is an arithmetic number, because the mean of its divisors is an integer number (12459336480).

Almost surely, 2^421341384450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421341384450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (598048151040).

421341384450 is an abundant number, since it is smaller than the sum of its proper divisors (774754917630).

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

421341384450 is a wasteful number, since it uses less digits than its factorization.

421341384450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636592 (or 636587 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 421341384450 in words is "four hundred twenty-one billion, three hundred forty-one million, three hundred eighty-four thousand, four hundred fifty".