916422 has 32 divisors (see below), whose sum is σ = 2042880. Its totient is φ = 272160.

The previous prime is 916417. The next prime is 916441. The reversal of 916422 is 224619.

It is a junction number, because it is equal to n+sod(n) for n = 916392 and 916401.

It is a congruent number.

It is an unprimeable number.

916422 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 15 ways as a sum of consecutive naturals, for example, 2229 + ... + 2607.

It is an arithmetic number, because the mean of its divisors is an integer number (63840).

2⁹¹⁶⁴²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 916422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021440).

916422 is an abundant number, since it is smaller than the sum of its proper divisors (1126458).

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

916422 is a wasteful number, since it uses less digits than its factorization.

916422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428.

The product of its digits is 864, while the sum is 24.

The square root of 916422 is about 957.2993262298. The cubic root of 916422 is about 97.1326346551.

The spelling of 916422 in words is "nine hundred sixteen thousand, four hundred twenty-two".