422767032820 has 288 divisors, whose sum is σ = 1063331297280. Its totient is φ = 140655820800.

The previous prime is 422767032817. The next prime is 422767032829. The reversal of 422767032820 is 28230767224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422767032829) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 153564564 + ... + 153567316.

It is an arithmetic number, because the mean of its divisors is an integer number (3692122560).

Almost surely, 2^422767032820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422767032820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531665648640).

422767032820 is an abundant number, since it is smaller than the sum of its proper divisors (640564264460).

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

422767032820 is a wasteful number, since it uses less digits than its factorization.

422767032820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927 (or 2914 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 422767032820 in words is "four hundred twenty-two billion, seven hundred sixty-seven million, thirty-two thousand, eight hundred twenty".