422910 has 48 divisors (see below), whose sum is σ = 1138176. Its totient is φ = 108864.

The previous prime is 422899. The next prime is 422911. The reversal of 422910 is 19224.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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

422910 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3267 + ... + 3393.

It is an arithmetic number, because the mean of its divisors is an integer number (23712).

2⁴²²⁹¹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569088).

422910 is an abundant number, since it is smaller than the sum of its proper divisors (715266).

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

422910 is a wasteful number, since it uses less digits than its factorization.

422910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 422910 is about 650.3153081391. The cubic root of 422910 is about 75.0612832445.

The spelling of 422910 in words is "four hundred twenty-two thousand, nine hundred ten".