422123434000 has 80 divisors (see below), whose sum is σ = 1021491334656. Its totient is φ = 168717552000.

The previous prime is 422123433989. The next prime is 422123434027. The reversal of 422123434000 is 434321224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2500257 + ... + 2663743.

Almost surely, 2^422123434000 is an apocalyptic number.

422123434000 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 422123434000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510745667328).

422123434000 is an abundant number, since it is smaller than the sum of its proper divisors (599367900656).

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

422123434000 is a wasteful number, since it uses less digits than its factorization.

422123434000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164801 (or 164785 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 422123434000 its reverse (434321224), we get a palindrome (422557755224).

The spelling of 422123434000 in words is "four hundred twenty-two billion, one hundred twenty-three million, four hundred thirty-four thousand".