421344441304 has 16 divisors (see below), whose sum is σ = 790188880320. Its totient is φ = 210627406560.

The previous prime is 421344441289. The next prime is 421344441317. The reversal of 421344441304 is 403144443124.

It is a super-2 number, since 2×421344441304² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421344441304.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5561787 + ... + 5637034.

It is an arithmetic number, because the mean of its divisors is an integer number (49386805020).

Almost surely, 2^421344441304 is an apocalyptic number.

It is an amenable number.

421344441304 is a deficient number, since it is larger than the sum of its proper divisors (368844439016).

421344441304 is a wasteful number, since it uses less digits than its factorization.

421344441304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11203530 (or 11203526 counting only the distinct ones).

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

Adding to 421344441304 its reverse (403144443124), we get a palindrome (824488884428).

The spelling of 421344441304 in words is "four hundred twenty-one billion, three hundred forty-four million, four hundred forty-one thousand, three hundred four".