423421404444000 has 1152 divisors, whose sum is σ = 1619845714206720. Its totient is φ = 104410031616000.

The previous prime is 423421404443971. The next prime is 423421404444013. The reversal of 423421404444000 is 444404124324.

It is a happy number.

423421404444000 is a `hidden beast` number, since 4 + 2 + 34 + 2 + 140 + 44 + 440 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11991186345 + ... + 11991221655.

It is an arithmetic number, because the mean of its divisors is an integer number (1406116071360).

Almost surely, 2^{423421404444000} is an apocalyptic number.

423421404444000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423421404444000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809922857103360).

423421404444000 is an abundant number, since it is smaller than the sum of its proper divisors (1196424309762720).

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

423421404444000 is a wasteful number, since it uses less digits than its factorization.

423421404444000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35781 (or 35760 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 36.

Adding to 423421404444000 its reverse (444404124324), we get a palindrome (423865808568324).

The spelling of 423421404444000 in words is "four hundred twenty-three trillion, four hundred twenty-one billion, four hundred four million, four hundred forty-four thousand".