422394 has 32 divisors (see below), whose sum is σ = 984960. Its totient is φ = 118272.

The previous prime is 422393. The next prime is 422407. The reversal of 422394 is 493224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3682 + ... + 3794.

It is an arithmetic number, because the mean of its divisors is an integer number (30780).

2⁴²²³⁹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492480).

422394 is an abundant number, since it is smaller than the sum of its proper divisors (562566).

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

422394 is a wasteful number, since it uses less digits than its factorization.

422394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its digits is 1728, while the sum is 24.

The square root of 422394 is about 649.9184564236. The cubic root of 422394 is about 75.0307429521.

The spelling of 422394 in words is "four hundred twenty-two thousand, three hundred ninety-four".