422431500000 has 168 divisors, whose sum is σ = 1386090539064. Its totient is φ = 112648000000.

The previous prime is 422431499993. The next prime is 422431500013. The reversal of 422431500000 is 5134224.

It is a self number, because there is not a number n which added to its sum of digits gives 422431500000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1359190 + ... + 1640810.

It is an arithmetic number, because the mean of its divisors is an integer number (8250538923).

Almost surely, 2^422431500000 is an apocalyptic number.

422431500000 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 422431500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693045269532).

422431500000 is an abundant number, since it is smaller than the sum of its proper divisors (963659039064).

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

422431500000 is an frugal number, since it uses more digits than its factorization.

422431500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281664 (or 281631 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 422431500000 its reverse (5134224), we get a palindrome (422436634224).

The spelling of 422431500000 in words is "four hundred twenty-two billion, four hundred thirty-one million, five hundred thousand".