422912 has 44 divisors (see below), whose sum is σ = 982560. Its totient is φ = 178176.

The previous prime is 422911. The next prime is 422923. The reversal of 422912 is 219224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7139 + ... + 7197.

2⁴²²⁹¹² 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 422912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491280).

422912 is an abundant number, since it is smaller than the sum of its proper divisors (559648).

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

422912 is an equidigital number, since it uses as much as digits as its factorization.

422912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 68 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 422912 is about 650.3168458529. The cubic root of 422912 is about 75.0614015694.

The spelling of 422912 in words is "four hundred twenty-two thousand, nine hundred twelve".