822426 has 32 divisors (see below), whose sum is σ = 1902528. Its totient is φ = 234240.

The previous prime is 822407. The next prime is 822431. The reversal of 822426 is 624228.

It is a junction number, because it is equal to n+sod(n) for n = 822396 and 822405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756 + ... + 1488.

It is an arithmetic number, because the mean of its divisors is an integer number (59454).

2⁸²²⁴²⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (951264).

822426 is an abundant number, since it is smaller than the sum of its proper divisors (1080102).

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

822426 is a wasteful number, since it uses less digits than its factorization.

822426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766.

The product of its digits is 1536, while the sum is 24.

The square root of 822426 is about 906.8770589225. The cubic root of 822426 is about 93.6912307224.

The spelling of 822426 in words is "eight hundred twenty-two thousand, four hundred twenty-six".